Ironman, no secret information here. The Fraser pigeon gun is serial number 1483. The wide, flat, deeply file cut rib is 9/16" at the breech, 5/16" at the muzzle. The receiver is marked D&J Fraser, the barrels are marked McColl and Fraser. The proofs are 1 1/4 oz. 2 3/4" chambers. Total weight 8.03 pounds.