I have a lyman peep sight that is marked on the inside with a W on one side and a single L on the other . no other marks except lyman .. Its a triangular 3 screw.. very good shape everything intact with screws .. it goes on a flat sided reciever...I need i think a model 41 reciever sight for a 1895 it has the same screw pattern as the one above but is not flat sided.. just wondering if anyone has any infor about these ... My 95 in 35wcf is drilled for this sight but now has filler screws...Lee