176: American Derringer Model Lady Derringer in 45 LC / 410 Gauge. This O/U top break action derringer features 3" barrels, high polish stainless steel, spur trigger and synthetic ivory grips. This gun has a hand fitted action to allow for easy cocking and it is one of the better derringers made. This one is on good condition overall. Estimated Value: Low: $450 High: $550