This is the type of pose that was often replicated via large paintings above the alcohol stock in saloons of the far west during the Gold Rush and after the Civil War. In great condition, this half-plate shows a toning streak down the middle of the plate, probably caused by some old right-handed miner holding it in his left hand all the time. I've never seen such a nice image in ambro or metal. These are usually found on card-stock. Without a doubt, that's an impressive set of neeples!