B.S.A.: an early .177 Lincoln Jefferies patent air rifle

B.S.A.: an early .177 Lincoln Jefferies patent air rifle, serial number 14856, barrel 19 in. with back-sight adjustable for elevation, under-barrel charging lever with early type extension for the hand, rotary loading gate, cylinder inscribed 'B.S.A. AIR RIFLE MADE BY THE BIRMINGHAM SMALL ARMS COMPANY LTD.', walnut butt stock with piled rifles trade mark. Buyer must be 18 or over.