A 19th-century lacquered-brass compound monocular microscope, signed on the base ANDW ROSS, LONDON, no 141 with rack and pinion coarse focusing and fine adjustment, the body-tube located on an arm over the massive square section limb, with mechanical stage rack adjustment, sub-stage wheel condenser and plano-concave mirror, with bull's-eye condenser and some accessories, in double ended mahogany carrying case 10¼in. (26cm.) high