<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2023v5.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-06-27T23:46:11-05:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>911663574</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>LARSON GROSS PLLC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>2211 RIMLAND DR 422</AddressLine1Txt>
        <CityNm>BELLINGHAM</CityNm>
        <StateAbbreviationCd>WA</StateAbbreviationCd>
        <ZIPCd>98226</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>911898141</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>SPARK MUSEUM OF ELECTRICAL INVENTION</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>SPAR</BusinessNameControlTxt>
      <PhoneNum>3607383886</PhoneNum>
      <USAddress>
        <AddressLine1Txt>1312 BAY ST</AddressLine1Txt>
        <CityNm>BELLINGHAM</CityNm>
        <StateAbbreviationCd>WA</StateAbbreviationCd>
        <ZIPCd>982254322</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>JOHN JENKINS</PersonNm>
      <PersonTitleTxt>PRESIDENT/CEO</PersonTitleTxt>
      <PhoneNum>3607383886</PhoneNum>
      <SignatureDt>2024-06-20</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>JOHN</PersonFirstNm>
        <PersonLastNm>JENKINS</PersonLastNm>
      </PersonFullName>
      <SSN>999009999</SSN>
    </SigningOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>1</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>STEVE FORBES-CPA</PreparerPersonNm>
      <PTIN>P00012098</PTIN>
      <PhoneNum>3607344280</PhoneNum>
    </PreparerPersonGrp>
    <AdditionalFilerInformation>
      <TrustedCustomerGrp>
        <TrustedCustomerCd>2</TrustedCustomerCd>
        <AuthenticationAssuranceLevelCd>AAL1</AuthenticationAssuranceLevelCd>
        <IdentityAssuranceLevelCd>IAL1</IdentityAssuranceLevelCd>
      </TrustedCustomerGrp>
    </AdditionalFilerInformation>
    <TaxYr>2023</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="6">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <PrincipalOfficerNm>JOHN JENKINS</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>1312 BAY ST</AddressLine1Txt>
        <CityNm>BELLINGHAM</CityNm>
        <StateAbbreviationCd>WA</StateAbbreviationCd>
        <ZIPCd>982254322</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>366540</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>WWW.SPARKMUSEUM.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1985</FormationYr>
      <LegalDomicileStateCd>WA</LegalDomicileStateCd>
      <ActivityOrMissionDesc>INTERACTIVE MUSEUM ILLUSTRATING THE DEVELOPMENT &amp; USE OF ELECTRICITY, RADIO AND OTHER INVENTIONS</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>6</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>5</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>3</TotalEmployeeCnt>
      <TotalVolunteersCnt>26</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>0</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>198946</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>110518</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>123316</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>175259</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>0</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>0</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>9075</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>48179</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>331337</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>333956</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>0</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>145433</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>146918</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>1895</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>101629</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>110962</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>247062</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>257880</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>84275</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>76076</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>181153</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>253293</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>4142</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>206</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>177011</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>253087</NetAssetsOrFundBalancesEOYAmt>
      <MissionDesc>AN INTERACTIVE MUSEUM OFFERING EDUCATIONAL EXPERIENCES FOR AUDIENCES OF ALL AGES THROUGH GALLERIES AND PUBLIC PROGRAMS THAT ILLUSTRATE THE DEVELOPMENT AND USE OF ELECTRICITY, RADIO &amp; THE RELATED INVENTIONS THAT CHANGED THE COURSE OF HUMAN HISTORY.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <ExpenseAmt>183245</ExpenseAmt>
      <RevenueAmt>177524</RevenueAmt>
      <Desc>THE MUSEUM OFFERS INTERACTIVE EDUCATIONAL EXPERIENCES TO THE PUBLIC THROUGH ITS EXTENSIVE COLLECTION THAT FOLLOWS A CONTINUOUS THREAD OF ELECTRICAL INVENTION AND DISCOVERY. VOLUNTEER DOCENTS AND MUSEUM STAFF PROVIDE GUIDED TOURS OF THE COLLECTION, WHICH CONTAINS A WEALTH OF UNIQUE AND RARE ARTIFACTS DATING FROM THE EARLIEST DAYS OF SCIENTIFIC ELECTRICAL EXPERIMENTS IN THE 1600S THROUGH THE 1940S AND THE GOLDEN AGE OF RADIO. VISITORS ALSO ARE INVITED TO EXPERIENCE THE MEGAZAPPER, ONE OF THE LARGEST TESLA COILS IN THE COUNTRY.</Desc>
      <ProgSrvcAccomActy2Grp>
        <RevenueAmt>18205</RevenueAmt>
        <Desc>STUDENTS AND CLUBS OF ALL AGES VISIT SPARK MUSEUM EACH YEAR ON ORGANIZED SCHOOL FIELD TRIPS AND GROUP VISITS. STAFF AND VOLUNTEER DOCENTS PROVIDE SPECIFIC EDUCATIONAL EXPERIENCES BASED ON GRADE LEVEL AND GROUP NUMBERS. THE MUSEUM ALSO PROVIDES ONLINE STEM RESOURCES FOR TEACHERS.</Desc>
      </ProgSrvcAccomActy2Grp>
      <TotalProgramServiceExpensesAmt>183245</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc1039100001">1</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1234500001">1</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc1040000001">0</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc1040000001">0</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc1040000001">1</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc1040000001">0</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd>0</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc1040000001">1</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc1040000001">0</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc1040000001">0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc1040000001">0</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc1040000001">0</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc1040000001">0</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <ForeignActivitiesInd>0</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>0</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>0</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd referenceDocumentId="RetDoc1041300001">0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd referenceDocumentId="RetDoc1041300001">1</FundraisingActivitiesInd>
      <GamingActivitiesInd referenceDocumentId="RetDoc1041300001">0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd>0</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>0</GrantsToIndividualsInd>
      <ScheduleJRequiredInd>0</ScheduleJRequiredInd>
      <TaxExemptBondsInd>0</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>0</PYExcessBenefitTransInd>
      <LoanOutstandingInd>0</LoanOutstandingInd>
      <GrantToRelatedPersonInd>0</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>0</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>0</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>0</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>0</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>0</DeductibleArtContributionInd>
      <TerminateOperationsInd>0</TerminateOperationsInd>
      <PartialLiquidationInd>0</PartialLiquidationInd>
      <DisregardedEntityInd>0</DisregardedEntityInd>
      <RelatedEntityInd>0</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>0</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>4</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>1</BackupWthldComplianceInd>
      <EmployeeCnt>3</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>1</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>0</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>0</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>0</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>0</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>0</Form8282PropertyDisposedOfInd>
      <RcvFndsToPayPrsnlBnftCntrctInd>0</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>0</PayPremiumsPrsnlBnftCntrctInd>
      <IndoorTanningServicesInd>0</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>0</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>0</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>6</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>5</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>0</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>1</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>0</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>0</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>1</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>1</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>0</OfficerMailingAddressInd>
      <LocalChaptersInd>0</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>1</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>1</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>1</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>1</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>0</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>0</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>0</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>0</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>0</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>WA</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>LARSON GROSS PLLC</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>3607344280</PhoneNum>
        <USAddress>
          <AddressLine1Txt>1312 BAY ST</AddressLine1Txt>
          <CityNm>BELLINGHAM</CityNm>
          <StateAbbreviationCd>WA</StateAbbreviationCd>
          <ZIPCd>982254322</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <NoListedPersonsCompensatedInd>X</NoListedPersonsCompensatedInd>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOHN JENKINS</PersonNm>
        <TitleTxt>PRESIDENT/CEO</TitleTxt>
        <AverageHoursPerWeekRt>8.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARK CHESTNUT</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>GEOFFREY VOGEL</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CATHERINE CLARK</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>STEVE FORBES</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DEBORAH HANUSCIN</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SANDY WARD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>0</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>0</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>0</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>0</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
      <MembershipDuesAmt>14018</MembershipDuesAmt>
      <FundraisingAmt>28991</FundraisingAmt>
      <GovernmentGrantsAmt>34689</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>32820</AllOtherContributionsAmt>
      <TotalContributionsAmt>110518</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>ADMISSIONS</Desc>
        <BusinessCd>712110</BusinessCd>
        <TotalRevenueColumnAmt>175259</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>175259</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>175259</TotalProgramServiceRevenueAmt>
      <GrossRentsGrp>
        <RealAmt>8125</RealAmt>
      </GrossRentsGrp>
      <LessRentalExpensesGrp>
        <RealAmt>0</RealAmt>
      </LessRentalExpensesGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>8125</RealAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>8125</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>8125</RelatedOrExemptFuncIncomeAmt>
      </NetRentalIncomeOrLossGrp>
      <FundraisingGrossIncomeAmt>45550</FundraisingGrossIncomeAmt>
      <ContriRptFundraisingEventAmt>28991</ContriRptFundraisingEventAmt>
      <FundraisingDirectExpensesAmt>17841</FundraisingDirectExpensesAmt>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>27709</TotalRevenueColumnAmt>
        <ExclusionAmt>27709</ExclusionAmt>
      </NetIncmFromFundraisingEvtGrp>
      <GrossSalesOfInventoryAmt>22618</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>14743</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>7875</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>7875</RelatedOrExemptFuncIncomeAmt>
      </NetIncomeOrLossGrp>
      <OtherRevenueMiscGrp>
        <Desc>OTHER INCOME</Desc>
        <BusinessCd>712110</BusinessCd>
        <TotalRevenueColumnAmt>4470</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>4470</RelatedOrExemptFuncIncomeAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>4470</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>333956</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>195729</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>27709</ExclusionAmt>
      </TotalRevenueGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>134551</TotalAmt>
        <ProgramServicesAmt>107641</ProgramServicesAmt>
        <ManagementAndGeneralAmt>26910</ManagementAndGeneralAmt>
      </OtherSalariesAndWagesGrp>
      <PayrollTaxesGrp>
        <TotalAmt>12367</TotalAmt>
        <ProgramServicesAmt>9894</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2473</ManagementAndGeneralAmt>
      </PayrollTaxesGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>8440</TotalAmt>
        <ManagementAndGeneralAmt>8440</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <AdvertisingGrp>
        <TotalAmt>31393</TotalAmt>
        <ProgramServicesAmt>23545</ProgramServicesAmt>
        <ManagementAndGeneralAmt>7848</ManagementAndGeneralAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>15032</TotalAmt>
        <ProgramServicesAmt>2405</ProgramServicesAmt>
        <ManagementAndGeneralAmt>11124</ManagementAndGeneralAmt>
        <FundraisingAmt>1503</FundraisingAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>1232</TotalAmt>
        <ProgramServicesAmt>924</ProgramServicesAmt>
        <ManagementAndGeneralAmt>308</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>35724</TotalAmt>
        <ProgramServicesAmt>26793</ProgramServicesAmt>
        <ManagementAndGeneralAmt>8931</ManagementAndGeneralAmt>
      </OccupancyGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>4182</TotalAmt>
        <ProgramServicesAmt>3136</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1046</ManagementAndGeneralAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>11040</TotalAmt>
        <ProgramServicesAmt>8280</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2760</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>VOLUNTEER-RELATED</Desc>
        <TotalAmt>1468</TotalAmt>
        <ProgramServicesAmt>235</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1086</ManagementAndGeneralAmt>
        <FundraisingAmt>147</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>OPERATING SUPPLIES</Desc>
        <TotalAmt>1436</TotalAmt>
        <ProgramServicesAmt>229</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1063</ManagementAndGeneralAmt>
        <FundraisingAmt>144</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>MISCELLANEOUS</Desc>
        <TotalAmt>1015</TotalAmt>
        <ProgramServicesAmt>163</ProgramServicesAmt>
        <ManagementAndGeneralAmt>751</ManagementAndGeneralAmt>
        <FundraisingAmt>101</FundraisingAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>257880</TotalAmt>
        <ProgramServicesAmt>183245</ProgramServicesAmt>
        <ManagementAndGeneralAmt>72740</ManagementAndGeneralAmt>
        <FundraisingAmt>1895</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>135341</BOYAmt>
        <EOYAmt>169499</EOYAmt>
      </CashNonInterestBearingGrp>
      <AccountsReceivableGrp>
        <EOYAmt>1666</EOYAmt>
      </AccountsReceivableGrp>
      <InventoriesForSaleOrUseGrp>
        <BOYAmt>9069</BOYAmt>
        <EOYAmt>9069</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <LandBldgEquipCostOrOtherBssAmt>275601</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>202542</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>36743</BOYAmt>
        <EOYAmt>73059</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <TotalAssetsGrp>
        <BOYAmt>181153</BOYAmt>
        <EOYAmt>253293</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>4011</BOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>131</BOYAmt>
        <EOYAmt>206</EOYAmt>
      </DeferredRevenueGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>4142</BOYAmt>
        <EOYAmt>206</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>177011</BOYAmt>
        <EOYAmt>253087</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>177011</BOYAmt>
        <EOYAmt>253087</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>181153</BOYAmt>
        <EOYAmt>253293</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>76076</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>0</FSAuditedInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>49650</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>64051</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>48736</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>198946</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>110518</CurrentTaxYearAmt>
        <TotalAmt>471901</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>165890</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>42277</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>81196</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>139956</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>197877</CurrentTaxYearAmt>
        <TotalAmt>627196</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>215540</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>106328</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>129932</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>338902</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>308395</CurrentTaxYearAmt>
        <TotalAmt>1099097</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <TotalAmt>0</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <TotalAmt>0</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <TotalAmt>0</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>1099097</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>2280</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>975</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1350</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>8125</CurrentTaxYearAmt>
        <TotalAmt>12730</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>2280</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>975</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1350</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>8125</CurrentTaxYearAmt>
        <TotalAmt>12730</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <OtherIncome509Grp>
        <CurrentTaxYearMinus2YearsAmt>17736</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>2222</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>4470</CurrentTaxYearAmt>
        <TotalAmt>24428</TotalAmt>
      </OtherIncome509Grp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>217820</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>106328</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>148643</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>342474</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>320990</CurrentTaxYearAmt>
        <TotalAmt>1136255</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.96730</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.97400</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.01120</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00610</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <CollectionUsedPubExhibitionInd>X</CollectionUsedPubExhibitionInd>
      <CollectionUsedPreservationInd>X</CollectionUsedPreservationInd>
      <SolicitedAssetsSaleInd>0</SolicitedAssetsSaleInd>
      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>186814</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>134532</DepreciationAmt>
        <BookValueAmt>52282</BookValueAmt>
      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>24403</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>24403</DepreciationAmt>
        <BookValueAmt>0</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>64384</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>43607</DepreciationAmt>
        <BookValueAmt>20777</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>73059</TotalBookValueLandBuildingsAmt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SPARK MUSEUM COLLECTION CONTAINS A WEALTH OF UNIQUE AND RARE ARTIFACTS DATING FROM THE EARLIEST DAYS OF SCIENTIFIC ELECTRICAL EXPERIMENTS IN THE 1600S THROUGH THE 1940S AND THE GOLDEN AGE OF RADIO. ARTIFACTS FROM THE LABORATORIES OF THE EARLY PIONEERS OF ELECTRICITY, FROM MAGNETS AND LEYDEN JARS TO EDISON LIGHT BULBS, MAGNIFICENT VACUUM TUBES, TELEGRAPHS AND TELEPHONES, ALL ARE WELL-REPRESENTED AT THE HISTORY MUSEUM IN BELLINGHAM. THOUSANDS OF RADIOS ARE IN THE COLLECTION, RANGING FROM THE EARLY "HERZIAN-WAVE" DEVICES TO A COMPLETE SET OF EARLY ATWATER KENT "BREADBOARDS" TO SCORES OF EXCEPTIONAL AND BEAUTIFULLY CRAFTED FLOOR AND TABLE-TOP RADIOS. THE COLLECTION ALSO INCLUDES RARE MUSIC BOXES, EARLY PHONOGRAPHS, AND MANY EXAMPLES OF RADIO BROADCASTING TECHNOLOGY AND MEMORABILIA FROM THE BEST-KNOWN RADIO COMPANIES AND BROADCASTERS. OTHER RARE PIECES INCLUDE THE LARGEST COLLECTION OF 19TH-CENTURY ELECTROMAGNETIC APPARATUS FOUND IN ANY PRIVATE COLLECTION, AND RARE AND ORIGINAL BOOKS, TREATISES AND SCIENTIFIC PAPERS BY SUCH AUTHORS AS GILBERT, NEWTON, GALILEO, BENJAMIN FRANKLIN, VOLTA, HERTZ AND MARCONI. THESE TEXTS ILLUSTRATE THE CRUCIAL STEPS AND TURNING POINTS IN THE DEVELOPMENT OF ELECTRICITY AND RADIO. THE ORGANIZATION DOES NOT RECORD THEIR COLLECTION ON THE BALANCE SHEET OF THE INTERNAL ACCOUNTING RECORDS. THE ORGANIZATION DOES NOT HAVE A REQUIREMENT TO PREPARE FINANCIAL STATEMENTS WITH FOOTNOTES AT THE PRESENT TIME.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleG documentId="RetDoc1041300001">
      <FundraisingEventInformationGrp>
        <Event1Nm>ANNUAL GALA</Event1Nm>
        <GrossReceiptsEvent1Amt>74541</GrossReceiptsEvent1Amt>
        <CharitableContriEvent1Amt>28991</CharitableContriEvent1Amt>
        <GrossRevenueEvent1Amt>45550</GrossRevenueEvent1Amt>
        <RentFacilityCostsEvent1Amt>1600</RentFacilityCostsEvent1Amt>
        <FoodAndBeverageEvent1Amt>10385</FoodAndBeverageEvent1Amt>
        <OtherDirectExpensesEvent1Amt>5856</OtherDirectExpensesEvent1Amt>
        <GrossReceiptsTotalAmt>74541</GrossReceiptsTotalAmt>
        <CharitableContributionsTotAmt>28991</CharitableContributionsTotAmt>
        <GrossRevenueTotalEventsAmt>45550</GrossRevenueTotalEventsAmt>
        <RentFcltyCostsTotalEventsAmt>1600</RentFcltyCostsTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>10385</FoodAndBeverageTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>5856</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>17841</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>27709</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS MEMBERSHIPS THAT ARE AVAILABLE TO INDIVIDUALS AND ORGANIZATIONS THAT INCLUDE ADMISSION, ADVANCED NOTICE OF EVENTS, SUBSCRIPTIONS TO MONTHLY NEWSLETTERS, AND DISCOUNTS ON MERCHANDISE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE DRAFTED FORM 990 IS SHARED WITH ALL BOARD MEMBERS THROUGH EMAILING OF DRAFT FOR APPROVAL, THEN THEY SHARE THEIR QUESTIONS &amp; REQUESTED CHANGES WITH THE INDEPENDENT ACCOUNTANTS WHO PREPARED THE RETURN.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION REQUIRED BOARD MEMBERS TO SIGN ANNUAL STATEMENTS NOTING NO CONFLICTS OF INTEREST AND COMPLIANCE IS REVIEWED PERIODICALLY AT BOARD MEETINGS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>ORGANIZATION'S GOVERNING DOCUMENTS &amp; FINANCIAL STATEMENTS ARE AVAILABLE UPON DIRECT REQUEST TO THE ORGANIZATION.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
