Hardin's weapons of choice, and several of his personal effects, have been well documented and auctioned to private collectors. Court records show that Hardin carried a Colt "Lightning" revolver at the time of his death. He also carried an Elgin watch when he was shot and killed. The revolver and the watch had been presented to Hardin in appreciation for his legal efforts on behalf of Jim Miller at Miller's trial for the killing of ex-sheriff George "Bud" Frazer. The Colt, with a .38-caliber " barrel, is nickel-plated, with blued hammer, trigger, and screws. It features mother-of-pearl grips, and the back-strap is hand-engraved "J.B.M. TO J.W.H.". This gun and its holster were once sold at auction for $168,000. Another Colt revolver (known as a .41-caliber "Thunderer"), which was owned by Hardin and used by him to rob the Gem Saloon, was sold at the same auction for $100,000.