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Date: |
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Description: | W 22.30 Apl 2/60 / No 167
Dry compass
Card: Mica covered with paper, black with white markings, graduated to quarter points.
Needle: One flat bar needle 6.6" long, having rounded ends and an expanded centre, to accommodate pivot cup, fitted with brass sliding weights. A brass cross bar is fitted having an expanded centre plate, fitted above expanded centre of needle, carrying sliding weights.
Pivot: Cone shaped brass pivot cup with jewel at top screwed through centre of needle.
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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