A plaque on the outiside of the case has the name of the retailer, Max Wocher & Son, Cincinnati
The following was extracted from the 1907 Leitz catalog:
Small Travelling Microscope. This microscope is
ready for use after spreading the foot, drawing out the tube, and setting the mirror and stage in position. It is provided with micrometer adjustment like Stand V, coarse adjustment by rack and pinion and condenser with iris diaphragm. The box accommodates three objectives, two eyepieces and a brass box for a bottle of cedar oil.
It is fitted with a lock and handle, and measures 25X15X7 cm. The whole apparatus weighs 4 1/2 pounds.
In addition to the Abbe condenser, this particular
example is also supplied with an aperture stop holder and three stops.
Another earlier version of the Small Travelling
Microscope is also represented in this collection. It differs somewhat from the later example shown on this page with
respect to the tube, stage, and its storage. The stage on the microscope shown
here is permanently attached to the stand. It is turned to the
side when the microscope is placed for storage in the case. There is a
lever that locks the position of the stage when setup for use. In contrast, the stage of the
earlier example of the travelling microscope is not permanently
attached to the body of the microscope. For storage in the case, it must
be removed from a slot on the body of the microscope and placed in a slot located in the case. While the
later model has a draw-tube, this is absent in the earlier model. Instead,
in the earlier model, the tube which carries the ocular is stored in
the outer main tube; it must be removed and reversed and then screwed to the
outer tube to assemble the microscope for use.
This microscope was purchased from the grandson of a previous owner who was a
physician with a practice in Ohio. While the grandfather was not the
original owner of this microscope, he used in his medical studies and subsequent
practice. The grandson has communicated to me the following:
His name was
Stanley Elwood Dorst. He was born in 1897 and died in 1972. His career
was entirely in academic medicine, at the University of Cincinnati School of
medicine. He held several leadership roles there, and was Dean from 1940 to
1963. He practiced general internal medicine, and had his own practice plus a
consulting practice, which he maintained for many years into his deanship. My
father told me that his father did house calls as part of his practice, and
that he took this microscope with him on those calls.