The frame was manufactured in 1898 per information listed on page 236 of Donald Dallas' "Boss & Co.: Builders of Best Guns Only" with a set of replacement tubes with London nitro proofs built in the 1960s numbered both "9485" as well as to the frame "4600". The gun has blued steel barrels with a single bead sight on the smooth concave solid rib which is marked "BOSS & CO. 13/14 CORK STREET. LONDON. W.1." along with a gold "2" at the base, 2 3/4 inch chambers with automatic ejectors, and light engraving at the breeches. The coin grey finished sidelock action displays classic bouquet & scroll engraving with "BOSS & Co." banners on either lockplate and "BOSS'S PATENT" marked on either side. The scroll extends to the trigger guard, both tangs, and the toplever which has a gold "2". The gun features a single trigger, lockplate mounted selector, gold centered cocking indicators, and a tang mounted manual safety with gold "SAFE" marking. Beautifully figured, multi-point checkered splinter forend with engraved fittings, including the Anson button release which is also marked with a gold "2". The straight grip stock is of the same quality with teardrop carved drop points and a checkered bare butt. Barrel and stock measurements (R/L): bore diameter nine inches from the breech both proved at .662 inches and both measured at .664 inches; choke constriction .006/.017 inches; minimum wall thickness .024/.023 inches; 1 1/2 inch drop at comb; 2 1/8 inch drop at heel; 14 1/16 inch length of pull; weight 5 lbs. 11 oz.