Yes that Tryon add is great. I have an 1830's percussion rifle in 36 cal. with Tryon locks which I'm told was made by a independent craftsman as the gun is finer than Tryon rifles of the period. I don't know, as I have seen a Tryon rifle in the Smithsonian collection that was a fine gun. Apparently Tryon made "Trade" guns for trade with the west, meaning the native tribes. David