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Optical Square with Handle, by Elliott Brothers, London, Late 19th or Early 20th Century

Inventory Number 12941

Acknowledgement: © History of Science Museum, University of Oxford, inv.12941

Item type
Object
Provenance
Presented by the Marconi Corporation in 2003.
Primary inscriptions
ELLIOTT BROS / LONDON
Physical material
Brass
Wood
Glass
Object type
Electronic instrument
Dimensions
Diameter: 90mm Height: 140mm Weight: 0.5kg
Inventory No
12941
Accession Number
2003-11

Description

Optical square in brass cylinder shaped casing with square openings cut into the side and upright wooden handle.

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