Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Paper Currency, by Denominations, and Coin in Circulation," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "December 1940," Federal Reserve Bulletin (December 1940) : 45-45. https://fraser.stlouisfed.org/title/62/item/21032/toc/399510 , accessed on May 9, 2024.