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Dip needle, magnetic
Magnetic dip needle in a fitted case made of black shagreen lined with red velvet, with silver catches and hinges. The needle is made of steel and is furnished with a central pivoted and jewelled mounting, enabling the needle to show, simultaneously, the angles of magnetic declination and dip.
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Object Details
| ID: | AST0764 |
|---|---|
| Collection: | Astronomical and navigational instruments |
| Type: | Dip needle, magnetic |
| Display location: | Not on display |
| Creator: | Unknown |
| Date made: | circa 1760 |
| Credit: | National Maritime Museum, Greenwich, London |
| Measurements: | Overall: 2 x 230 x 22 mm; Box: 9 x 244 x 35 mm |
| Parts: | Dip needle, magnetic |