German, c.1960, parts engraved Carl Zeiss, the set with 3 Achromat Pol Int objectives with centerable slide changers, and the corresponding condenser, 2 centering wrenches for the slide changers, a diaphragm insert, auxiliary microscope, & an interference filter all in a fitted wooden case with original instructions

Note: the x40 objective is delaminated so a spare is provided, however the serial number does not match the condenser