Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "United States Savings Bonds - Sales, Redemptions and Amount Outstanding," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "July 1955," Federal Reserve Bulletin (July 1955) : 52-52. https://fraser.stlouisfed.org/title/62/item/21247/toc/159163 , accessed on May 4, 2024.