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Trigometer
Three hinged rules forming triangle with sight vanes and sliding scale. The central sliding scale of this instrument was used to measure the angles between triangulation points and then apply those measurements directly to a drawing.
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Object Details
| ID: | NAV1475 |
|---|---|
| Type: | Trigometer |
| Display location: | Not on display |
| Creator: | Unknown |
| Date made: | 1595 |
| Credit: | National Maritime Museum, Greenwich, London, Caird Collection |
| Measurements: | Overall: 20 mm x 215 mm x 27 mm |
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