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Vertical force compass
Needle balanced on pivot.Needle graduated 0-25 either side of pivot, fitted with a venier scale at each end. Weights on needle arms adjusted by two rods operated from outside bowl.
Fitted in wooden box 13.5 x 6.5 x 3.25"(34.3 x 16.5 x 8.3cm). Fitted on brass mounting 13" (33cm) to fit into compass gimbals.
Fitted in wooden box 13.5 x 6.5 x 3.25"(34.3 x 16.5 x 8.3cm). Fitted on brass mounting 13" (33cm) to fit into compass gimbals.
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Object Details
| ID: | NAV0473 |
|---|---|
| Type: | Vertical force compass |
| Display location: | Not on display |
| Creator: | Kelvin Bottomley & Baird Ltd |
| Date made: | 1929 |
| Credit: | National Maritime Museum, Greenwich, London |
| Measurements: | Overall: 42 mm x 300 mm x 131 mm x 102 mm |