Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Kinds of United States Currency Outstanding and in Circulation," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "January 1957," Federal Reserve Bulletin (January 1957) : 45-45. https://fraser.stlouisfed.org/title/62/item/21265/toc/82025 , accessed on April 25, 2024.