Case-mounted microscope with a fine focus adjustment
Likely English made, c. 1845
This case-mounted microscope, when assembled with the compound tube,
is 11½-inches in height measuring from the table top. The case
dimensions are 6 x 5¼ x 1½-inches. It is unsigned by the maker
and is likely English dating from the mid-19th century.
The main focusing adjustment is accomplished by sliding the
stage up and down along the cylindrical pillar, while the knob
on top of the pillar functions as a fine focus adjustment
by moving the optics. The microscope comes supplied with a Huygenian eyepiece
and four separate objectives of different magnifications that are
used singly. In addition, it is supplied with a
brass trough with glass bottom for wet work, a glass stage
insert, and stage clips. The microscope can be use with or
without the compound tube.