A medal described as the “holy grail of Columbian Expo numismatics” sold at auction on March 21, for $45,600. Stack’s Bowers Galleries offered a rare example of Augustus Saint-Gaudens’ Columbian Exposition award medal with his original--and ultimately rejected--reverse side image of a nude male youth. Each exhibitor at the 1893 World’s Fair received an award medal, meaning that 20,000 or so such medals were minted, and many still circulate among collectors. At any given time, several typically are for [...]