Here's what fell out: 17 issues under 10,000 45 issues under 20,000 71 issues under 30,000 155 issues under 100,000 Not surprisingly, uncirculated gold half eagles occupy 17 of the 21 rarest spots. Proof gold half eagles occupy 3 of the remaining 4 spots, with the unique gold & platinum bi-metallic eagle minted in 2000 rounding out the list. The rarest copper-nickel half dollar to date is the uncirculated 2018 Breast Cancer Awareness issue at 11,302. The uncirculated Boys Town 2017 issue comes in second at 15,525 The rarest silver dollar is the uncirculated Boys Town coin at 12,234, followed by the uncirculated Breast Cancer Awareness at 12,520. In fact, the entire Boys Town set proved very unpopular, as exemplified by the uncirculated half eagle taking the overall number one spot with a paltry 1,822 minted. If I find the time and energy, I may add the American Eagles, Liberty, and Buffalo coins and various medals to see how it all shakes out. Anyway, I thought some of you may find this interesting. *Disclaimer: No guarantee my numbers are right. I did not include medals, bullion, or American Eagles. I did this for fun and it could be way off.