United States. Department of the Treasury. Citizens Coinage Advisory Committee , United States. Department of the Treasury and United States. Bureau of the Mint. "Meeting, June 16, 2021 : Minutes" in Citizens Coinage Advisory Committee Meetings, Recommendations, and Minutes (June 16, 2021). https://fraser.stlouisfed.org/title/7136/item/646875/content/pdf/ccac20210616minutes, accessed on June 7, 2026.