Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Number and Amount of Items Handled; Also Cost Per Item and Per $1,000," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "1918," Annual Report of the Board of Governors of the Federal Reserve System (1918) : 208-208. https://fraser.stlouisfed.org/title/117/item/2476/toc/229165 , accessed on April 18, 2024.