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History of Science Museum

Simple Microscope, English, c. 1755

Inventory Number 50547


Subject
Microscopy
Item type
Object
Provenance
Purchased from Dr. Reginald S. Clay with his collection.
Dimensions
Height: 172mm Width: 120mm Depth: 128mm
Inventory No
50547

Description

Simple microscope with folding flat tripod and removable stem with fixed stage and lenses.

Stem, stage and lenses. The hexagonal brass stem which screws into the folding flat tripod. A short arm is mounted at the top of the stem by a compass joint, which supports a dovetail limb. The limb is graduated and the stage is held on a sliding sleeve. The stage has an upper ring capable of holding thin sliders and a heavier lower ring on a sprung hinge can hold a tube. Six objective lenses are mounted in a click-stop rotating disc. A hole in the mounting shows which lens is in place. Fine focusing is by a screw that runs though the limb to a mill-edged knob. At the lower end of the limb is a rod on a hinge mounting that could hold a substage mirror. No mirror is present.

Folding flat tripod with three scroll-like legs and a thread for the stem to be screwed into.