This is a museum quality reproduction made in sterling silver with a 24 karat gold plate of a USMC Bull Dog charm, notice the Bulldog is wearing the flat top helmet. This charm was probably used as a sweetheart item given to the Marines mother, wife or girlfriend. The charm is 9/16 of an inch tall and a 1/2 inch wide. While not shown a split ring is supplied so you can attached this to a charm bracelet or put on a chain for a necklace.