I have details of a Henry Proctor Barrel Maker 19 1/2 Princip Street, Birmingham circa 1897. Also a William Proctor 82, Leaman Street, London 1854 to 1859. Those detalis are from Nigel Brown's books on British Gunmakers. Scant details i'm afraid. Any address on the top rib or any other clues? Lagopus.....