Federal Reserve Bank of Dallas. "Cash Offering Treasury Department Circular Nos. 985 and 986 3-1/2% Treasury Notes of Series A-1960 3-3/8% Treasury Certificates of Indebtedness of Series A-1958," District Notices (Federal Reserve Bank of Dallas) (March 15, 1957). https://fraser.stlouisfed.org/title/5569/item/551101, accessed on October 9, 2026.