- Subject
- Electronic instruments
- Item type
- Object
- Makers
- Elliott Brothers
- Provenance
- Presented by the Marconi Corporation in 2003.
- Primary inscriptions
- Elliott Bros / 30 Strand / London
- Object type
- Electronic instrument
- Dimensions
- Diameter: 47mm Height: 19mm Weight: 0.1kg
- Inventory No
- 12940
- Accession Number
- 2003-11
Description
Glass optical square in brass circular casing which twists to reveal two square openings. Engraved on top surface.
Elliotts were at 30 Strand for the short period 1858-63.
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