United States. Department of the Treasury. "Bill Tender, September 18, 1951," in United States. Department of the Treasury. "Volume 89," Press Releases of the United States Department of the Treasury (August 2, 1951 - September 28, 1951) : 468-469. https://fraser.stlouisfed.org/title/6111/item/586932/toc/570318 , accessed on May 10, 2024.