German, c.1850, engraved to the stage '3372 C. Zeiss. Jena.' the microscope screws into the brass boss on the top of the case, with a small concave mirror to the base, screw focus to the small limb at the back, stage with a single clip, with a Zeiss compound objective according to Brücke engraved 'Carl Zeiss Jena', objective collar, 2 simple objectives by 'Carles Chevalier' in the original fruit wood case, with key