Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "United States Money, Outstanding and in Circulation, by Kinds," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "July 1948," Federal Reserve Bulletin (July 1948) : 74-74. https://fraser.stlouisfed.org/title/62/item/21163/toc/351569 , accessed on September 21, 2023.