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. "October 1951," Federal Reserve Bulletin (October 1951) : 49-49. https://fraser.stlouisfed.org/title/62/item/21202/toc/415377 , accessed on March 29, 2024.