A fine mid-19th Century continental monocular microscope, with detachable body tube, the limb adjusted by rack-and-pinion focusing, with triangular rackwork, square mechanical stage with fine screw adjustment, mounted on cylindrical column, with plano-concave mirror on sliding collar, supported on the pillar by compass joint, on flat tripod foot, with accessories including a 3:1 objective for 1½", 1", 1/2", in fitted mahogany case c. 1840 - 10¼in. wide