SKB, Not wishing to be contrarian for The sake of it but I must state that on every Birmingham boxlock I ever worked on the sear pin was always behind (rearmost) of the tumbler (hammer) . The cocking lever being the forward pin. The trigger pin would be inside on the bottom metal.

Last edited by Hugh Lomas; 07/19/20 09:09 PM.

Hugh Lomas,
H.G.Lomas Gunmakers Inc.
920 876 3745