Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Treasury Currency Outstanding," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "January 1941," Federal Reserve Bulletin (January 1941) : 42-42. https://fraser.stlouisfed.org/title/62/item/21033/toc/167380 , accessed on May 9, 2024.