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Dry card compass
Bowl-Brass, patented by Kenneth Mc Culloch in 1788. Mounted on pivot, the base of bowl coned upwards for the purpose. The bowl is fixed in bracket with two curved slotted arms, in which two pins fixed to the bowl engage, preventing movement in azimuth. Card-No card present, but would have of inverted pivot type. Mounted on ACO stand: 8.5"x8.5" (21.6x21.6 cm) O.A. height 7.0" (17.8cm).
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Object Details
| ID: | ACO0002 |
|---|---|
| Type: | Dry card compass |
| Display location: | Not on display |
| Creator: | McCulloch, Kenneth |
| Date made: | 1788 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 175 mm; Diameter: 275 mm |