United States. Department of the Treasury. "Appointment of Members of the Annual Assay Commission, February 9, 1934," in United States. Department of the Treasury. "Volume 11," Press Releases of the United States Department of the Treasury (December 13, 1933 - June 16, 1934) : 144-148. https://fraser.stlouisfed.org/title/6111/item/586849/toc/560304 , accessed on May 7, 2024.