United States. Department of the Treasury. Citizens Coinage Advisory Committee , United States. Department of the Treasury and United States. Bureau of the Mint. "Meeting, September 18, 2019 : Minutes" in Citizens Coinage Advisory Committee Meetings, Recommendations, and Minutes (September 18, 2019). https://fraser.stlouisfed.org/title/7136/item/646937/content/pdf/ccac20190918minutes, accessed on June 7, 2026.