Colt Model 1883 Gatling Gun

Image 4 of 10

The centerpiece of the auction was a fully-operational U.S. Government-inspected Colt Model 1883 Gatling gun. The brass cylinder encases a 10-barrel revolver that is approximately 50 inches long. When cranked up, the gun can fire 600-800 rounds a minute.

Price realized: $241,500

The Rock Island Auction Co. based in Rock Island, Illinois, hosted its largest antique gun auction of the decade on April 20, 21 and 22, 2012. The auction generated $12.6 million in sales.