United States. Department of the Treasury. "Treasury Purchases and Coinage of Silver," in United States. Department of the Treasury. "Annual Report of the Secretary of the Treasury on the State of the Finances for the Year 1885, Volume I: Finance," Annual Report of the Secretary of the Treasury on the State of the Finances (1885) : 16-19. https://fraser.stlouisfed.org/title/194/item/5530/toc/258702 , accessed on May 4, 2024.