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        <CurrentTaxYearMinus4YearsAmt>147221</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>128914</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>223364</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>109740</CurrentTaxYearMinus1YearAmt>
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        <CurrentTaxYearMinus1YearAmt>109740</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>118155</CurrentTaxYearAmt>
        <TotalAmt>727394</TotalAmt>
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      <PublicSupportTotal170Amt>417803</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
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        <CurrentTaxYearMinus3YearsAmt>496</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1540</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1749</CurrentTaxYearMinus1YearAmt>
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      <TotalSupportAmt>733311</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>733311</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.56970</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.51580</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
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    <IRS990ScheduleD documentId="ScheduleD" documentName="IRS990ScheduleD">
      <ArtPublicExhibitionAmountsGrp>
        <RevenuesIncludedAmt>0</RevenuesIncludedAmt>
        <AssetsIncludedAmt>0</AssetsIncludedAmt>
      </ArtPublicExhibitionAmountsGrp>
      <HeldWorksArtGrp>
        <RevenuesIncludedAmt>0</RevenuesIncludedAmt>
        <AssetsIncludedAmt>0</AssetsIncludedAmt>
      </HeldWorksArtGrp>
      <CollectionUsedPubExhibitionInd>X</CollectionUsedPubExhibitionInd>
      <SolicitedAssetsSaleInd>false</SolicitedAssetsSaleInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, Line 4</FormAndLineReferenceDesc>
        <ExplanationTxt>Mack Trucks Historical Museum is open to the general public and maintains a continuous and bona fide program for solicitation of funds from the general public via donations from visitors to the museum.</ExplanationTxt>
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    <IRS990ScheduleO documentId="ScheduleO" documentName="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part VI, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>Final form 990 is submitted for review and approval by principal officer. Additionally, all financial statements used in preparation of form 990 are reviewed and approved by officers/ board.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part VI, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Final form 990 is submitted for review and approval by principal officer. Additionally, all financial statements used in preparation of form 990 are reviewed and approved by officers/ board.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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</Return>