David Hall: The 1937-D Boone has an extremely low mintage of only 2,506 coins. This was due to some manipulation at the time of issue (see my narrative on the 1937 Philadelphia, PCGS coin #9270). Nonetheless, today this low mintage figure definitely drives demand. Since virtually the entire mintage was saved, the 1937-D is not a truly rare coin, but it is one of the more scarce Boones. Most survivors grade MS63 to MS67, and very few circulated pieces exist. It is not quite as rare as the equally low mintage 1937-S. The typical 1937-D has semi-frosty, semi-satiny luster and usually good eye appeal.