細節
A FINE J. LANG 1870 PATENT 12-BORE HAMMER GUN BY J. LANG, NO. 4637
The action incorporating J. Lang double grip snap-action patent No. 687 of 1870, toplever, rebounding backlocks, percussion fences, best foliate-scroll engraving with traces of hardening-colour, finely-figured stock wtih engraved heel-and toe-plates, the browned fine damascus barrels with game-rib
Weight 6lb. 8½oz., 13 5/8in. stock, 28in. barrels, both approx. cyl. (relieved), 2½in. chambers, Black Powder proof
In its painted canvas case