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Date: |
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Description: | 27-0 Apl 7/60 Gray No 83 83
83
Dry compass
Card: Mica with markings painted onto it. Grey with black markings graduated to half points and 0 - 360 degrees. Open at centre to accommodate angled iron bridge which holds pivot spike.
Needle: two edge bar needles attached to card support framework. Both needles have moveable weights attached. Length 10" (25.5 cm)
Pivot: The bridge is attached to a central ring by screws and leaf springs. The pivot spike screws into the bridge.
caption: Record Shot - Do not reproduce. | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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