Yes it has proof marks. The Birmingham provisional proof mark(crown over BP)1855-1904, the Birmingham View3 Mark(crossed swords with crown in top angle and V in bottom angle1813-1904, the Brimingham definitvve proof mark(crossed swords wiith BPC in the left bootom1813-1904 and 12 over C in the diamond chamber size mark 1887-1954 for 2 1/2 inch chamber. The gun has no nitro proof marks and vever proved for nitro powders, and a 13/1 bore for internal barrel dimension .719-.729 normal 12 guage.

Last edited by grimm; 02/23/09 05:31 PM.