﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2025v4.0" xsi:schemaLocation="http://www.irs.gov/efile">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2026-03-01T19:45:41-08:00</ReturnTs>
    <TaxPeriodEndDt>2025-12-31</TaxPeriodEndDt>
    <ReturnTypeCd>990PF</ReturnTypeCd>
    <TaxPeriodBeginDt>2025-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>822481484</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>Second Face Museum of Cultural Masks</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>SECO</BusinessNameControlTxt>
      <PhoneNum>4802418414</PhoneNum>
      <USAddress>
        <AddressLine1Txt>8218 N 13th Ave</AddressLine1Txt>
        <CityNm>Phoenix</CityNm>
        <StateAbbreviationCd>AZ</StateAbbreviationCd>
        <ZIPCd>85021</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Aaron Fellmeth</PersonNm>
      <PersonTitleTxt>Executive Director</PersonTitleTxt>
      <PhoneNum>4802418414</PhoneNum>
      <SignatureDt>2026-03-01</SignatureDt>
    </BusinessOfficerGrp>
    <TaxYr>2025</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="6">
    <IRS990PF documentId="IRS990PF" referenceDocumentId="GeneralExplanation" softwareId="25022934" softwareVersionNum="2025v4.0">
      <Organization501c3ExemptPFInd>X</Organization501c3ExemptPFInd>
      <FMVAssetsEOYAmt>12593</FMVAssetsEOYAmt>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <AnalysisOfRevenueAndExpenses>
        <ContriRcvdRevAndExpnssAmt>37242</ContriRcvdRevAndExpnssAmt>
        <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
        <OtherIncomeRevAndExpnssAmt referenceDocumentId="OtherIncomeSchedule2">864</OtherIncomeRevAndExpnssAmt>
        <TotalRevAndExpnssAmt>38106</TotalRevAndExpnssAmt>
        <TotalNetInvstIncmAmt>0</TotalNetInvstIncmAmt>
        <AccountingFeesRevAndExpnssAmt referenceDocumentId="AccountingFeesSchedule">420</AccountingFeesRevAndExpnssAmt>
        <AccountingFeesChrtblPrpsAmt>420</AccountingFeesChrtblPrpsAmt>
        <TravConfMeetingRevAndExpnssAmt>37189</TravConfMeetingRevAndExpnssAmt>
        <TravConfMeetingDsbrsChrtblAmt>37189</TravConfMeetingDsbrsChrtblAmt>
        <OtherExpensesRevAndExpnssAmt referenceDocumentId="OtherExpensesSchedule AmortizationSchedule">367</OtherExpensesRevAndExpnssAmt>
        <OtherExpensesDsbrsChrtblAmt>436</OtherExpensesDsbrsChrtblAmt>
        <TotOprExpensesRevAndExpnssAmt>37976</TotOprExpensesRevAndExpnssAmt>
        <TotOprExpensesNetInvstIncmAmt>0</TotOprExpensesNetInvstIncmAmt>
        <TotOprExpensesDsbrsChrtblAmt>38045</TotOprExpensesDsbrsChrtblAmt>
        <ContriPaidRevAndExpnssAmt>0</ContriPaidRevAndExpnssAmt>
        <ContriPaidDsbrsChrtblAmt>0</ContriPaidDsbrsChrtblAmt>
        <TotalExpensesRevAndExpnssAmt>37976</TotalExpensesRevAndExpnssAmt>
        <TotalExpensesNetInvstIncmAmt>0</TotalExpensesNetInvstIncmAmt>
        <TotalExpensesDsbrsChrtblAmt>38045</TotalExpensesDsbrsChrtblAmt>
        <ExcessRevenueOverExpensesAmt>130</ExcessRevenueOverExpensesAmt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
      </AnalysisOfRevenueAndExpenses>
      <Form990PFBalanceSheetsGrp>
        <CashBOYAmt>12463</CashBOYAmt>
        <SavAndTempCashInvstEOYAmt>12593</SavAndTempCashInvstEOYAmt>
        <SavAndTempCashInvstEOYFMVAmt>12593</SavAndTempCashInvstEOYFMVAmt>
        <TotalAssetsBOYAmt>12463</TotalAssetsBOYAmt>
        <TotalAssetsEOYAmt>12593</TotalAssetsEOYAmt>
        <TotalAssetsEOYFMVAmt>12593</TotalAssetsEOYFMVAmt>
        <TotalLiabilitiesEOYAmt>0</TotalLiabilitiesEOYAmt>
        <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
        <NoDonorRstrNetAssestsBOYAmt>12463</NoDonorRstrNetAssestsBOYAmt>
        <NoDonorRstrNetAssestsEOYAmt>12593</NoDonorRstrNetAssestsEOYAmt>
        <TotNetAstOrFundBalancesBOYAmt>12463</TotNetAstOrFundBalancesBOYAmt>
        <TotNetAstOrFundBalancesEOYAmt>12593</TotNetAstOrFundBalancesEOYAmt>
        <TotalLiabilitiesNetAstBOYAmt>12463</TotalLiabilitiesNetAstBOYAmt>
        <TotalLiabilitiesNetAstEOYAmt>12593</TotalLiabilitiesNetAstEOYAmt>
      </Form990PFBalanceSheetsGrp>
      <ChgInNetAssetsFundBalancesGrp>
        <TotNetAstOrFundBalancesBOYAmt>12463</TotNetAstOrFundBalancesBOYAmt>
        <ExcessRevenueOverExpensesAmt>130</ExcessRevenueOverExpensesAmt>
        <SubtotalAmt>12593</SubtotalAmt>
        <TotNetAstOrFundBalancesEOYAmt>12593</TotNetAstOrFundBalancesEOYAmt>
      </ChgInNetAssetsFundBalancesGrp>
      <ExciseTaxBasedOnInvstIncmGrp>
        <InvestmentIncomeExciseTaxAmt>0</InvestmentIncomeExciseTaxAmt>
        <TaxDueAmt>0</TaxDueAmt>
        <AppliedToESTaxAmt>0</AppliedToESTaxAmt>
      </ExciseTaxBasedOnInvstIncmGrp>
      <StatementsRegardingActyGrp>
        <LegislativePoliticalActyInd>false</LegislativePoliticalActyInd>
        <MoreThan100SpentInd>false</MoreThan100SpentInd>
        <Form1120POLFiledInd>false</Form1120POLFiledInd>
        <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
        <ChangesToArticlesOrBylawsInd>false</ChangesToArticlesOrBylawsInd>
        <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
        <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
        <Section508eRqrSatisfiedInd>true</Section508eRqrSatisfiedInd>
        <AtLeast5000InAssetsInd>true</AtLeast5000InAssetsInd>
        <OrgReportOrRegisterStateCd>AZ</OrgReportOrRegisterStateCd>
        <Form990PFFiledWithAttyGenInd referenceDocumentId="ExplanationOfNonFilingWithAGSt">false</Form990PFFiledWithAttyGenInd>
        <PrivateOperatingFoundationInd>true</PrivateOperatingFoundationInd>
        <NewSubstantialContributorsInd referenceDocumentId="SubstantialContributorsSchedul">true</NewSubstantialContributorsInd>
        <OwnControlledEntityInd>false</OwnControlledEntityInd>
        <DonorAdvisedFundInd>false</DonorAdvisedFundInd>
        <ComplyWithPublicInspRqrInd>true</ComplyWithPublicInspRqrInd>
        <WebsiteAddressTxt>https://maskmuseum.org</WebsiteAddressTxt>
        <PersonsWithBooksName>
          <BusinessNameLine1Txt>Aaron Fellmeth</BusinessNameLine1Txt>
        </PersonsWithBooksName>
        <PhoneNum>4802418414</PhoneNum>
        <LocationOfBooksUSAddress>
          <AddressLine1Txt>8218 N 13th Ave</AddressLine1Txt>
          <CityNm>Phoenix</CityNm>
          <StateAbbreviationCd>AZ</StateAbbreviationCd>
          <ZIPCd>85021</ZIPCd>
        </LocationOfBooksUSAddress>
        <ForeignAccountsQuestionInd>false</ForeignAccountsQuestionInd>
      </StatementsRegardingActyGrp>
      <StatementsRegardingActy4720Grp>
        <SaleOrExchDisqualifiedPrsnInd>false</SaleOrExchDisqualifiedPrsnInd>
        <BrrwOrLendDisqualifiedPrsnInd>false</BrrwOrLendDisqualifiedPrsnInd>
        <FurnGoodsDisqualifiedPrsnInd>false</FurnGoodsDisqualifiedPrsnInd>
        <PayCompDisqualifiedPrsnInd>false</PayCompDisqualifiedPrsnInd>
        <TransferAstDisqualifiedPrsnInd>false</TransferAstDisqualifiedPrsnInd>
        <PaymentToGovernmentOfficialInd>false</PaymentToGovernmentOfficialInd>
        <ActsFailToQlfyAsExceptionsInd>false</ActsFailToQlfyAsExceptionsInd>
        <UncorrectedPriorActsInd>false</UncorrectedPriorActsInd>
        <UndistributedIncomePYInd>false</UndistributedIncomePYInd>
        <BusinessHoldingsInd>false</BusinessHoldingsInd>
        <JeopardyInvestmentsInd>false</JeopardyInvestmentsInd>
        <UncorrectedPYJeopardyInvstInd>false</UncorrectedPYJeopardyInvstInd>
        <InfluenceLegislationInd>false</InfluenceLegislationInd>
        <InfluenceElectionInd>false</InfluenceElectionInd>
        <GrantsToIndividualsInd>false</GrantsToIndividualsInd>
        <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
        <NoncharitablePurposeInd>false</NoncharitablePurposeInd>
        <RcvFndsToPayPrsnlBnftCntrctInd>false</RcvFndsToPayPrsnlBnftCntrctInd>
        <PayPremiumsPrsnlBnftCntrctInd>false</PayPremiumsPrsnlBnftCntrctInd>
        <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
        <SubjToTaxRmnrtnExPrchtPymtInd>false</SubjToTaxRmnrtnExPrchtPymtInd>
      </StatementsRegardingActy4720Grp>
      <OfficerDirTrstKeyEmplInfoGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>Aaron Fellmeth</PersonNm>
          <USAddress>
            <AddressLine1Txt>8218 N 13th Ave</AddressLine1Txt>
            <CityNm>Phoenix</CityNm>
            <StateAbbreviationCd>AZ</StateAbbreviationCd>
            <ZIPCd>85021</ZIPCd>
          </USAddress>
          <TitleTxt>Executive Dir.</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>0.00</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
        </OfficerDirTrstKeyEmplGrp>
        <CompOfHghstPdEmplOrNONETxt>NONE</CompOfHghstPdEmplOrNONETxt>
        <CompOfHghstPdCntrctOrNONETxt>NONE</CompOfHghstPdCntrctOrNONETxt>
      </OfficerDirTrstKeyEmplInfoGrp>
      <SummaryOfDirectChrtblActyGrp>
        <Description1Txt>Production of photographic records of masked ceremonies, religious rituals, and traditional theatre around the world. Sponsor research on ethnographic information relating to masks and masked cultural traditions around the world publicize this research. In 2025, the Museum sponsored research and photographic documentation of cultural masquerading traditions in seven countries.</Description1Txt>
        <Expenses1Amt>0</Expenses1Amt>
        <Description2Txt>Maintenance of the collection and display on its website, along with information, photographic records, and documentary films gathered in Activity 1 above; answer public questions about cultural masquerade and masks grant licenses to Museum images and documentary films for use in educational ventures.</Description2Txt>
        <Description3Txt>Public lectures and interviews on cultural masquerading traditions around the world and collaboration with informational and educational projects. Collaborate with other nonprofit organizations in advancing understanding of world masquerading traditions.</Description3Txt>
        <Description4Txt>Assist cultural organizations around the world with the preservation and promotion of their traditional masquerades through advice and support, both logistical and, where appropriate, financial.</Description4Txt>
      </SummaryOfDirectChrtblActyGrp>
      <MinimumInvestmentReturnGrp>
        <AverageMonthlyFMVOfSecAmt>0</AverageMonthlyFMVOfSecAmt>
        <AverageMonthlyCashBalancesAmt>0</AverageMonthlyCashBalancesAmt>
        <FMVAllOtherNoncharitableAstAmt>0</FMVAllOtherNoncharitableAstAmt>
        <TotalFMVOfUnusedAssetsAmt>0</TotalFMVOfUnusedAssetsAmt>
        <ReductionClaimedAmt>0</ReductionClaimedAmt>
        <AdjustedTotalFMVOfUnusedAstAmt>0</AdjustedTotalFMVOfUnusedAstAmt>
        <CashDeemedCharitableAmt>0</CashDeemedCharitableAmt>
        <NetVlNoncharitableAssetsAmt>0</NetVlNoncharitableAssetsAmt>
        <MinimumInvestmentReturnAmt>0</MinimumInvestmentReturnAmt>
      </MinimumInvestmentReturnGrp>
      <DistributableAmountGrp>
        <Sect4942j3j5FndtnAndFrgnOrgInd>X</Sect4942j3j5FndtnAndFrgnOrgInd>
      </DistributableAmountGrp>
      <PFQualifyingDistributionsGrp>
        <ExpensesAndContributionsAmt>38045</ExpensesAndContributionsAmt>
        <QualifyingDistributionsAmt>38045</QualifyingDistributionsAmt>
      </PFQualifyingDistributionsGrp>
      <PrivateOperatingFoundationsGrp>
        <PrivateOperatingFndtnRulingDt>2018-03-20</PrivateOperatingFndtnRulingDt>
        <Section4942j3Ind>X</Section4942j3Ind>
        <LessorAdjNetIncmMinInvstRetGrp>
          <CurrentYearAmt>0</CurrentYearAmt>
          <TotalAmt>0</TotalAmt>
        </LessorAdjNetIncmMinInvstRetGrp>
        <QualifyingDistributionsGrp>
          <CurrentYearAmt>38045</CurrentYearAmt>
          <Year1Amt>34631</Year1Amt>
          <Year2Amt>23862</Year2Amt>
          <Year3Amt>15621</Year3Amt>
          <TotalAmt>112159</TotalAmt>
        </QualifyingDistributionsGrp>
        <QualifyingDistriMadeDrtGrp>
          <CurrentYearAmt>38045</CurrentYearAmt>
          <Year1Amt>34631</Year1Amt>
          <Year2Amt>23862</Year2Amt>
          <Year3Amt>15621</Year3Amt>
          <TotalAmt>112159</TotalAmt>
        </QualifyingDistriMadeDrtGrp>
        <TotalAssetsGrp>
          <CurrentYearAmt>12593</CurrentYearAmt>
          <Year1Amt>12463</Year1Amt>
          <Year2Amt>9126</Year2Amt>
          <Year3Amt>13051</Year3Amt>
          <TotalAmt>47233</TotalAmt>
        </TotalAssetsGrp>
        <TotalAssetsSect4942j3BiGrp>
          <CurrentYearAmt>12593</CurrentYearAmt>
          <Year1Amt>12463</Year1Amt>
          <Year2Amt>9126</Year2Amt>
          <Year3Amt>13051</Year3Amt>
          <TotalAmt>47233</TotalAmt>
        </TotalAssetsSect4942j3BiGrp>
        <TwoThirdsMinimumInvstRetGrp>
          <TotalAmt>0</TotalAmt>
        </TwoThirdsMinimumInvstRetGrp>
      </PrivateOperatingFoundationsGrp>
      <SupplementaryInformationGrp>
        <ApplicationSubmissionInfoGrp>
          <RecipientPersonNm>Aaron Fellmeth</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>8218 N 13th Ave</AddressLine1Txt>
            <CityNm>Phoenix</CityNm>
            <StateAbbreviationCd>AZ</StateAbbreviationCd>
            <ZIPCd>85021</ZIPCd>
          </RecipientUSAddress>
          <RecipientPhoneNum>6022186156</RecipientPhoneNum>
          <RecipientEmailAddressTxt>spam@fellmeth.net</RecipientEmailAddressTxt>
          <FormAndInfoAndMaterialsTxt>N/A</FormAndInfoAndMaterialsTxt>
          <SubmissionDeadlinesTxt>N/A</SubmissionDeadlinesTxt>
          <RestrictionsOnAwardsTxt>The Museum does not offer awards. Its budget funds Museum operations only.</RestrictionsOnAwardsTxt>
        </ApplicationSubmissionInfoGrp>
      </SupplementaryInformationGrp>
      <AnalysisIncomeProducingActyGrp>
        <ProgramServiceRevenueDtl>
          <Desc>Consulting fee received</Desc>
          <RelatedOrExemptFunctionIncmAmt>864</RelatedOrExemptFunctionIncmAmt>
        </ProgramServiceRevenueDtl>
        <SubtotalsIncmProducingActyGrp>
          <RelatedOrExemptFunctionIncmAmt>864</RelatedOrExemptFunctionIncmAmt>
        </SubtotalsIncmProducingActyGrp>
        <TotalIncomeProducingActyAmt>864</TotalIncomeProducingActyAmt>
      </AnalysisIncomeProducingActyGrp>
      <TrnsfrTransRlnNonchrtblEOGrp>
        <TrnsfrOfCashToNonchrtblEOInd>false</TrnsfrOfCashToNonchrtblEOInd>
        <TrnsfrOtherAssetNonchrtblEOInd>false</TrnsfrOtherAssetNonchrtblEOInd>
        <SalesOrExchangesOfAssetsInd>false</SalesOrExchangesOfAssetsInd>
        <PurchaseOfAssetsNonchrtblEOInd>false</PurchaseOfAssetsNonchrtblEOInd>
        <RentalOfFacilitiesOthAssetsInd>false</RentalOfFacilitiesOthAssetsInd>
        <ReimbursementArrangementsInd>false</ReimbursementArrangementsInd>
        <LoansOrLoanGuaranteesInd>false</LoansOrLoanGuaranteesInd>
        <PerformanceOfServicesEtcInd>false</PerformanceOfServicesEtcInd>
        <SharingOfFacilitiesEtcInd>false</SharingOfFacilitiesEtcInd>
        <RelationshipsNonchrtblEOInd>false</RelationshipsNonchrtblEOInd>
      </TrnsfrTransRlnNonchrtblEOGrp>
    </IRS990PF>
    <AccountingFeesSchedule documentId="AccountingFeesSchedule" softwareId="25022934" softwareVersionNum="2025v4.0">
      <AccountingFeesDetail>
        <CategoryTxt>Intuit Protax Fee</CategoryTxt>
        <Amt>420</Amt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>420</DisbursementsCharitablePrpsAmt>
      </AccountingFeesDetail>
    </AccountingFeesSchedule>
    <ExplnOfNonFilingWithAGStmt documentId="ExplanationOfNonFilingWithAGSt" softwareId="25022934" softwareVersionNum="2025v4.0">
      <ExplanationTxt>Filing not required by Arizona law.</ExplanationTxt>
    </ExplnOfNonFilingWithAGStmt>
    <OtherExpensesSchedule documentId="OtherExpensesSchedule" softwareId="25022934" softwareVersionNum="2025v4.0">
      <OtherExpensesScheduleGrp>
        <Desc>Arizona State corporate filing fees</Desc>
        <RevenueAndExpensesPerBooksAmt>10</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>10</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>Bank fees</Desc>
        <RevenueAndExpensesPerBooksAmt>33</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>33</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>Software licensing, website maintenance</Desc>
        <RevenueAndExpensesPerBooksAmt>298</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>367</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>USPS</Desc>
        <RevenueAndExpensesPerBooksAmt>26</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>26</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
    </OtherExpensesSchedule>
    <OtherIncomeSchedule2 documentId="OtherIncomeSchedule2" softwareId="25022934" softwareVersionNum="2025v4.0">
      <OtherIncomeDetail>
        <Desc>Consulting fee received</Desc>
        <RevenueAndExpensesPerBooksAmt>864</RevenueAndExpensesPerBooksAmt>
      </OtherIncomeDetail>
    </OtherIncomeSchedule2>
    <SubstantialContributorsSch documentId="SubstantialContributorsSchedul" softwareId="25022934" softwareVersionNum="2025v4.0">
      <SubstantialContributorDetail>
        <PersonNm>Aaron Fellmeth</PersonNm>
        <USAddress>
          <AddressLine1Txt>8218 N 13th Ave</AddressLine1Txt>
          <CityNm>Phoenix</CityNm>
          <StateAbbreviationCd>AZ</StateAbbreviationCd>
          <ZIPCd>85021</ZIPCd>
        </USAddress>
      </SubstantialContributorDetail>
    </SubstantialContributorsSch>
  </ReturnData>
</Return>