Spencer Black and Brass Microscope w/ case
Spencer Black and Brass Microscope w/ case. #65? Early 20th century, with rackwork coarse focusing, fine focusing mounted on the side of the curved pillar, triple nosepiece with three marked objectives (16x, 44x, 95x), mechanical stage, substage condenser and iris diaphragm, plano/concave mirror, U-foot, with box, ht. 12 in.