The microscope came equipped with two eyepieces and four objectives numbered 0, 4, and 7, and 9. Within the tube is a Bertrand lens and an analyzing Nicol prism, both on sliding mountings. The focusing sub-stage holds a polarizer with a three element condenser. The top two elements can be moved aside for low power work using a lever mounted on the side of the stage.
The following was extracted form The Journal of the Royal Microscopical Society, 1892
Fuess
Microscopes - The Fuess model No. II. (fig.
68) is similar to the larger instrument described in
this Journal, 1891, p. 393. The stand can be inclined
to the horizontal. The rotating stage is divided into
360ยบ, with two verniers reading to 5 minutes. It can be
fixed in any position by means of a lever. The
polarizer has a rack and pinion motion. In its socket
fit the various illuminating apparatus, which can be
centered by slide pieces provided with screws.
Arrangements for obtaining convergent and parallel
light can be inserted. The mechanical stage (fig. 72,
p. 669) is similar to that of the larger model, but has
no micrometer measuring arrangement. All the special
eye-pieces and other accessories of the model No. I.
can be used with this instrument. Model No. III. (fig.
69) does not differ very much from the proceeding. The
stage is provided with cross-divisions for the
orientation of the preparation; but if required the
mechanical stage of model No. II can also be applied to
this instrument. The draw-tube is only movable by hand,
and carries no millimeter divisions.
An example of the Fuess model No. I of similar vintage is also in this collection as is an example of model No. IIIa from 1908 and a example of the model No. III from 1895.
