Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Circulation of Bank Notes and of State Currency Notes," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "October 1921," Federal Reserve Bulletin (October 1921) : 41-41. https://fraser.stlouisfed.org/title/62/item/20528/toc/349022 , accessed on March 28, 2024.