Prospector who discovered the largest silver deposit in the United States, known as the Comstock Lode. Check, 6.75 x 2.75, filled out and signed by Comstock, payable to Wm. Boardsman and Sons for 28.00, August 25, 1868. Check is affixed to a to a 10 x 7.5 sheet of cardstock. In fine condition, with cancellation cut to center, a bit of light toning and a couple vertical folds. RRAuction COA.