We always talk about rarity in this blog series featuring Whitman Publishing’s 100 Greatest United States coins. Of course that is a pre-determining factor when compiling a list such as this and we take our cues from author Jeff Garrett with input from Ron Guth. Out of all the coins in United States coinage history, considering mint marks, dates, denominations, mintages, and more, why would it not be a top factor when considering such a list?
However, it is certainly rare (pun intended) to come across a coin that is deemed “unique” rather than rare. That is exactly what our next coin in the series has been deemed not because of its low mintage, but because it happens to be the only known one in...read more