Watson Bros., London. Best sidelock SxS 20ga. light weight game gun, ca. 1908. Weight: 5 lbs. 6 oz. Stock Dimensions: 14 ½”x 1 3/8”x 2 3/8”x ¼” cast-off. 27” steel barrels with 2 ¾” chambers have excellent bores (.629”/.626”), choked .010”/.018”, with minimum wall thickness of .027”/.027”. Last nitro proofs (3 tons) were with 2 ½” chambers and bore diameters of .626”/.626”. Beautifully engraved, bar-action sidelock, action with hidden third fastener which is a bit unusual in a 20ga. gun. Non-selective single trigger , ejectors, and automatic safety. Nicely figured straight-grip stock with checkered butt and splinter forend. Original period case with proper trade label. Overall a beautiful little gun which has been restocked and refinished and is priced accordingly.