HRDA 3-D Skull - Liberty Spikes Copper - Bronze Version #36730 - Prototype Silver Version #41214 - Size: 2" x 1.5" - Material Make-up: Copper Tone Base Metal. Manufactured by: PINCRAFT. Available Only Through the HRCPCC "Online" Dutch Auction, End Date Sunday 9/9/2007 10:30:00 PM EST. Winning Bid $20.00. Complete Set of 3: "Online" #39673. Painted style. 5 lines print. Logo - Hard Rock Pattern. This pin was exclusively sold online. Base Material is Copper