A fine early 19th-century lacquered-brass Jones's Most Improved pattern compound monocular microscope, signed on the folding tripod stand Dollond London, the body tube located on a limb with friction clamp, with wheel objective mounting, mechanical stage adjusted by rack and pinion, condenser lens, bull's-eye condenser, plano-concave mirror, various objectives, frog-plate, live-box, ivory sliders and other items, in fitted mahogany case 13 3/8in. (34cm.) wide