20th Anniversary 2005 - Black Doubleneck Harley Davidson Boat Trip Guitar - Rocky Stocky 2005 Pin Collecting Event - 5LC Pincraft Back This pin was made in two versions, gold and silver back. The silver back was the event pin (and was only sold at the Harley Davidson Boat Trip) and the gold back was auctioned off at the raffle of the event. Painted style. 5 lines print. Logo - Hard Rock Pattern. This pin was only distributed at an event. Base Material is Silver Appearance