An oxidised and lacquered brass microscope signed W.WATSON & SONS 313 HIGH HOLBORN LONDON No.6764,with inner draw tube, outer draw tube with rackand pinion focusing, body tube with rack and pinion and micometer fine focusing, single nose-piece, mechanical stage with two screw adjusters with rack and pinion adjustment and mirror, on horse-shoe base, in mahogany case - 14in. high