The compound monocular microscope of W. Seibert has an optical tube fixed to the vertical column by two screw anchors to the support shaft that ends in a horseshoe-shaped foot. It has a fixed vertical system.
It has a wheel condenser with four increasing size holes. Manual coarse focusing system by turning the tube and fine focusing by wheel on the vertical axis. Completely made of brass. It is a very rare model. It was manufactured in Austria by C. Reichert and also in Germany by Ernst Leitz.