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Protractor, semi-circular
Graduated semi-circular protractor with internal frame, to which is attached a graduated arm. Screw for fine adjustment on the internal frame, small magnifying lens at centre of frame.
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Object details
| ID: | ZBA0819 |
|---|---|
| Type: | Protractor, semi-circular |
| Materials: | Brass; Steel Glass |
| Display location: | Not on display |
| Creator: | Simms, James & George; Simms |
| Date made: | 1825-1850 |
| People: | Science and Industry Museum |
| Credit: | National Maritime Museum, Greenwich, London |
| Measurements: | Overall: 42 x 425 x 107 mm |
| Parts: | Protractor, semi-circular |