The mirror arm can be raised above the stage to illuminate opaque objects from above. Imbedded within the stage is wheel with 5 apertures.

Leopold Schrauer only made the microscope stands and never made his own objectives. He supplied his microscopes with objectives manufactured by both American and European firms.The optics supplied with this particular microscope consist of two eyepeices and two Hartnack objectives numbered 2 and 7.

One leg of the base is engraved with the name of the original owner of the microscope, W. M. Keene, B. Sc. M. D. So far, I have not been able to locate any information about a medical doctor with that name. It is engraved in the same hand that engraved the Schrauer signature suggesting that the microscope was made by Schrauer specifically for Dr. Keene.

A similar continental style microscope is located elsewere in this collection. It differs from the present example in the method used to focus the mirror and the use of aperture stops instead of a diaphragm wheel.