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 12, 2018 : Federal Register Notice" in Citizens Coinage Advisory Committee Meetings, Recommendations, and Minutes (June 12, 2018). https://fraser.stlouisfed.org/title/7136/item/646870/content/pdf/ccac20180612notice, accessed on June 7, 2026.