Description
A RARE 12-BORE SELF-COCKING HAMMER GUN BY HOLLAND & HOLLAND, NO. 4117 Incorporating T. Perke's self-cocking hammer gun patent no. 129 of 1876 (Patent use 213), push-forward snap-action underlever operating a bar rising from the head of the action to raise the hammers to half- and full-cock (original self-cocking spring...