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Building and Loan Associations
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Credit Unions, federal or state
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Export-Import Bank of the United States
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Federal Agricultural Mortgage Corporation (Farmer Mac)
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Federal Home Loan Mortgage Corporation (Freddie Mac) Securities
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Federal Housing Administration
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Federal income tax refunds, interest
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Federal National Mortgage Association
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Federal National Mortgage Association (Fannie Mae) Securities
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Government National Mortgage Association (Ginnie Mae) Securities
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Merchant Marine (Maritime Administration)
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Money Market Certificates
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Mortgage Participation Certificates
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Savings and Loan Associations, federal or state
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Small Business Administration