The microscope has a lacquered brass tube and knobs. The cast iron base, pillar, and limb have a green-gold bronzed finish.
As opposed to the
normal rack and pinion, the tube focuses by turning
the knobs to activate friction drive consisting of a
metal cylinder which is forced, by means of a brass
spring, against a grove cut within a brass bar
attached to the tube.
The following was extracted from the 1870 Queen catalog:
1665. Queen's
Student's Microscope. This stand has been
designed and constructed by us especially to meet
the wants of students and profesaional men,
combining, with excellent workmanship, most of the
advantages of the more elaborate instruments, at
less than one-third of their cost. The very highest
powers may be used with it perfectly. Its height is
14 inches. The base and arm are of iron, finished
in ligbt-green bronze; whilst the body and all
other parts are of brass of the very highest
finish. The coarse adjustment is of an entirely
novel construction, working with entire smoothness;
fine adjustment by micrometer screw; movable glass
stage, beneath which a tube is fitted for carrying
the diaphragm and accessory illuminating apparatus;
concave and plane mirrors, arranged for direct and
oblique illumination, fitted with Society Screw.
Price of stand with one eye-piece, draw-tube, two
object glasses Number 0 {1 inch), and Number 0 (1/4
inch), giving powers from 60 to 250 diameters,
condensing lens on separate stand, a glass slip,
with ledge and ccovers, for the examination of
objects in fluid, needles, stage forceps, and brass
pliers, packed in a handsome polished walnut
cabinet, with good lock and brass handles. Price...$65.00
