A 13-BORE D.B. PERCUSSION SPORTING GUN with two-stage rebrowned twist barrels signed in full on the rib, scroll engraved case-hardened breeches and tang, platinum plugs, signed scroll engraved case-hardened locks (side-nail and one hammer screw replaced), figured walnut half-stock, chequered grip, scroll engraved iron mounts including butt-plate (lightly pitted) and blued trigger-guard with pineapple-shaped finial, vacant silver escutcheon, and original brass-mounted wooden ramrod, by Joseph Manton & Son, 6 Hollis (sic) St.t, Cavendish Square, London, London proof marks, No. 10.674 for 1837, the barrels bored by Thomas Evans