Prototype of pin #4761. This one has a LARGE OPEN GRID back. July 4th, 99 in Gold lettering on a Brown winged Bald Eagle. Red and White stripped Shield with HARD ROCK in Blue, and HOTEL is unpainted, in the center. LAS VEGAS in Gold on a Gold Banner below the shield. Painted with clear epoxy coating style. 3 Lines print. Grid - Large Open Pattern. Base Material is Gold Appearance