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Wilson Screw-Barrel Microscope with Accessories and Case, c. 1750-1775

preview image for Wilson Screw-Barrel Microscope with Accessories and Case, c. 1750-1775
Inventory Number: 40842
Object Type: Object
Place Created: England United Kingdom Europe
Subject Classification(s): Microscopy  
Accession Number: 1944-1
Brief Description: Screwbarrel microscope by Wilson. The microscope consists of a copper alloy cylinder with a threaded hole at one end to take the eyepiece. A second copper alloy cylinder that has a an external thread screws into the first. Three copper alloy disks make up the stage and are held against the internal cylinder by a steel spring. There is a boss at the side of the outer cylinder to take a handle. Case contains 6 bone sliders.

The accessories are an ivory talc box with copper alloy rings and mica windows, an attachment to hold an objective while using forceps, a knob with a milled edge that screws into the barrel, a pasteboard slide case covered in black leather with eight Ivory sliders, a long copper alloy wire coiled towards one end for cleaning the inside of a glass tube and eight objectives, four with lids two with no glass and one with a Lieberkühn in a can. The case is softwood, covered in black fish skin, lined with green velvet.
Primary Inscriptions: "287" written in ink inside the lid of the box
Provenance: Purchased from Dr. Reginald S. Clay.
Collection Group: Clay Collection
Material(s): Copper Alloy
Fish Skin
Height Width Depth Diameter Unit
45 154 102 mm

There are no associated narratives.

Image with multimedia irn 44811

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