Signed on the back of the base: L. Schrauer, Maker, New York
and on one leg of the base: W. M. Keene, B. Sc. M. D.
Continental style monocular microscope, c.1890
The mirror arm can be
raised above the stage to illuminate opaque objects
from above. Imbedded within the stage is wheel with 5
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.
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.