A fine 19th-century lacquered-brass compound binocular microscope, signed on the base C. COLLINS Optician 157, Gt, Portland Strt, LONDON, with rack and pinion coarse focusing and fine adjustment, prism, triple nose-piece, mechanical stage, sub-stage condenser and plano-cancave mirror, with three objectives, slides and other accessories, in mahogany case 19in. (48cm.) high