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. "November 1957," Federal Reserve Bulletin (November 1957) : 23-23. https://fraser.stlouisfed.org/title/62/item/21275/toc/44978 , accessed on April 25, 2024.