1856-O Liberty Head Half Eagle. AU Details--Counterstamped (NGC).Cleverly countermarked with a rabbit punch within the vertical lines of the shield on the reverse, this unusual half eagle has a bit of whimsical charm, if not strong numismatic merit in the traditional sense. The surfaces are evenly patinated in light golden wheat tones and the device definition is impressive. Popular with Southern gold specialists at all levels of preservation, the 1856-O has the lowest mintage among No Motto New Orleans Mint half eagles with just 10,000 coins struck.