Bonds, consolidated bonds, collateral trust debentures, consolidated debentures, or other obligations issued by federal land banks or federal intermediate credit banks established under the Federal Farm Loan Act, as amended, the Farm Credit Act of 1971, in debentures and consolidated debentures issued by the Central Bank for Cooperatives and banks for cooperatives established under the Farm Credit Act of 1933, as amended, and the Farm Credit Act of 1971, and in stocks, bonds, debentures, participations, and other obligations of, or issued by, the Federal National Mortgage Association, the Student Loan Marketing Association, the Government National

Mortgage Association, and the Federal Home Loan Mortgage Corporation.