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Solar Microscope in Case with Accessories, by Benjamin Martin, London, c. 1775-1800

preview image for Solar Microscope in Case with Accessories, by Benjamin Martin, London, c. 1775-1800
Inventory Number: 38502
Object Type: Object
Persons: Benjamin Martin
Date Created: last quarter 18th century (pre 1782)
Place Created: Fleet Street London England United Kingdom Europe
Subject Classification(s): Microscopy  
Accession Number: 1944-1/622
Brief Description: The copper alloy body screws into the back plate. On the rear of the copper alloy plate is a rectangular mirror and two milled knobs on the front of the plate adjust the position and angle of the mirror. The slide carrier screws onto the other end of the body tube. It consists of an outer cylinder with two rectangular sections cut away and a thread in the end to take the projection lens. There is also a slot to take a copper alloy slide with six objective lenses (kept in a black card case). A rack and pinion, for focusing, extends the outer cylinder from an inner cylinder that holds the stage and an third, spring mounted, cylinder. The stage is two disks that are pushed together by the spring cylinder. The accessories are two shutter screws, a copper alloy wet cell, an ivory slider in a black card case. The fitted wooden case has green felt facing the supports.
Primary Inscriptions: "Made by B. MARTIN, Fleet Street, LONDON, No. 6."
Provenance: Purchased from Dr. Reginald S. Clay in 1944.
Collection Group: Clay Collection
Material(s): Copper alloy
Mirrored glass

There are no associated narratives.

Image with multimedia irn 44752

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