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. "December 1949," Federal Reserve Bulletin (December 1949) : 35-35. https://fraser.stlouisfed.org/title/62/item/21180/toc/259702 , accessed on May 4, 2024.