Clark, Gruber & Co. was a well-known private mining firm in Denver, Colorado. They were the predecessors of the Denver Mint during the Pikes Peak Gold Rush.
Obverse: Head of Liberty facing left surrounded by 13 stars, date below, Clark & Co. in the headband.
Reverse: Eagle, 2 1/2 D., PIKES PEAK GOLD, DENVER.
Diameter: 18 mm
24K gold plated