United States. Department of the Treasury. "New Amendments of the Law of 1883," in United States. Department of the Treasury. "Annual Report of the Secretary of the Treasury on the State of the Finances for the Year 1886, Volume II: Collection of Duties," Annual Report of the Secretary of the Treasury on the State of the Finances (1886) : 49-49. https://fraser.stlouisfed.org/title/194/item/5531/toc/38763 , accessed on May 10, 2024.