Rare American Arms Co. Over/under .41 caliber Derringer. Approximately 400 made. Serial #121 barrel address is sharp and clear on both barrels. Grips are excellent with original varnish. Barrels swivel by squeezing the release lever. Bores are poor as are most .41 caliber rimfire Derringers. Blue has thinned to a Blue/Gray finish. Brass frame is excellent. With an even mustard color patina. Action works perfectly. Rare cartridge Derringer.