This Henry Crouch student binocular microscope is an excellent device made with the number 2,956, measuring 35.5 cm tall. The interpupillary distance is regulated by a screw mechanism. Its plate is circular. It has a mahogany case that contains numerous accessories. Among them, four objectives in their corresponding metal cases, four eyepieces, a revolver for two objectives, a wheel condenser and an optical one. A clamp for observing small samples, clamps and various observation devices and a large “bull’s eye” magnifying glass for illumination by incident light. A similar microscope exists in the National Museum of American History. Catalog Number: 2009.0116.09