Annual Average Price of a Fine Ounce Silver Based Upon London Quotations at Per Rate of Exchange at the Average Monthly Prices of Pure Silver
Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Annual Average Price of a Fine Ounce Silver Based Upon London Quotations at Per Rate of Exchange at the Average Monthly Prices of Pure Silver," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "November 1917," Federal Reserve Bulletin (November 1917) : 20-20. https://fraser.stlouisfed.org/title/62/item/21100/toc/233569 , accessed on January 19, 2021.