Any savings bank may invest its funds, or money in its custody, in the bonds of any Federal Home Loan Bank or Federal Reserve Bank, or in consolidated Federal Home Loan Bank or Federal Reserve Bank bonds, debentures or notes, or in farm loan bonds, consolidated farm loan bonds, debentures, consolidated debentures and other obligations issued by federal land banks and federal intermediate credit banks under the authority of the Farm Credit Act of 1971, 12 U.S.C. § 2001 to 2259, inclusive, as amended or supplemented, and the bonds, debentures, consolidated debentures and other obligations issued by banks for cooperatives under the authority of the Farm Credit Act, formerly 12 U.S.C. § 1131 to 1138e, inclusive, and the Farm Credit Act of 1971, 12 U.S.C. § 2001 to 2259, inclusive, as amended or supplemented.