United States. Department of the Treasury. "Amendment of Silver Regulations, August 31, 1934," in United States. Department of the Treasury. "Volume 14A," Press Releases of the United States Department of the Treasury (January 1, 1934 - December 31, 1934) : 238-239. https://fraser.stlouisfed.org/title/6111/item/586854/toc/570647 , accessed on April 25, 2024.