This shoulder fire harpoon gun uses a 12 gauge heavy barrel marked "THOMAS BLAND & SONS/4 & 5 KING WILLIAM ST. WEST STRAND/LONDON." The lock plate is signed "THOMAS BLAND & SONS." The barrel flat and watertable are British proofed. The barrel is numbered to the gun. The forearm and round knob pistol grip stock feature multi-point checkering. The buttstock has unmarked aluminum plates on both sides and a solid recoil pad. Comes with a 25 5/8 inch long harpoon. From the John Ross collection, author of the bestselling novel "Unintended Consequences".