The 1934 catalog
description of this portable microscope is as follows: The
stand is of light design, and is equipped with simplified
illuminating apparatus S with rack and pinion coarse motion,
geared slow motion, and rectangular stage. The foot is
designed to fold. The instrument, with the optical equipment
and set of working implements 12 40 90, may be furnished in a
compact tightly closing oak case with a shoulder strap. The
stand is inclinable through 30 degrees, extensible tube with
millimeter scale. With 10 object slides, 100 cover-glasses,
glass vial for immersion oil in metal box". Accessories
included a condenser n.a. 1.2 with iris diaphragm, triple
revolving nosepiece, 8x (n.a. 020), 40x (n.a.0.65) and 90x
(n.a. 1.25 oil immersion, with iris diaphragm for dark field
observation) objectives. 5X and 10X Huygenian eyepieces were
also offered.
The mechanical stage was an optional
accessory. Total weight about 4.5Kg.
For
the purposes of excursions, congresses, lectures away
from home, medical or veterinary investigations in the
country, etc. it is often desirable to be able to
carry Out microscopic investigations on the spot. The
customary working microscopes, owing to their bulk and
weight are scarcely adapted for being taken about on
journeys and travels. Our travelling microscope has
been specially designed for these purposes. The new
model embodies further improvements in the matter of
lightness and handiness. The weight of the instrument
including the oak case with handle and leather strap
is only 10 1/2 lbs. The stand conforms in its general
contours to the modern Zeiss type and ensures perfect
steadiness. It is inclinable and has an illuminating
apparatus which can be raised and lowered. For
convenience in folding the usual horseshoe foot is
replaced by three hinged claw pieces.
The following was taken from the 1934 Zeiss catalog:
Dr. Mervin
W. Busby
This microscope was the working instrument of Dr. Mervin W. Busby (c. 1889-1930's, born in Chester PA) who operated a large animal veterinary practice out of Orange VA. The microscope was purchased for this collection from his great-grandson.