United States. Department of the Treasury. "Bill Tender, May 10, 1955," in United States. Department of the Treasury. "Volume 103," Press Releases of the United States Department of the Treasury (April 5, 1955 - July 28, 1955) : 128-131. https://fraser.stlouisfed.org/title/6111/item/586946/toc/536890 , accessed on May 8, 2024.