Groundbreaking for a new Mint at Philadelphia, Pennsylvania, September 17, 1965, Release Number f-199
United States. Department of the Treasury. "Groundbreaking for a new Mint at Philadelphia, Pennsylvania, September 17, 1965, Release Number f-199," in United States. Department of the Treasury. "Volume 150," Press Releases of the United States Department of the Treasury (August 3, 1965 - September 29, 1965) : 461-470. https://fraser.stlouisfed.org/title/6111/item/586993/toc/539851 , accessed on June 22, 2024.