Note that the upper portion of the microscope can rotate relative to the base.
This is an example of the large non-inclining model having the fine adjustment control located at the rear under the stage. The microscope comes equipped with three eyepieces, six objectives where five are stored in a leather covered box and the last one is stored in a brass canister, a sub-stage aperture stop holder with three stops of different apertures, an Oberhäuser type camera lucida, and a free standing bullseye condenser.
The following describes the use of the Oberhäuser camera lucida:
For drawing microscopic objects the camera ludica will be found useful. This is a small glass prism attached to the eye-piece. The microscope is inclined horizontally, and the observer, looking into the prism, sees the object directly under his eye, so that its outlines may be drawn on a piece of paper placed on the table. Some practice, however, is needed for satisfactory results. For the upright stands of German and French microscopes, the camera lucida of Chevalier & Oberhäuser is available. This is a prism in a rectangular tube, in front of which is the eyepiece, carrying a small glass prism (c, Fig. 17), surrounded by a black metal ring. A paper placed beneath is visible through the opening in the ring, and the image reflected by the prism upon it can be traced by a pencil. It is necessary to regulate the light so that the point of the pencil may be seen.