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Date: |
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Description: | 773 -6
OBSERVATOR 3191
Bowl- Brass painted black and expanded at bottom. White on inside and has two lubber lines 90 degs apart. The bowl is glazed top and bottom and has a graduated verge ring, 0-360 degrees, which appears to have been displaced by 90 degs. There is a filler hole on the side and the compass is fitted with an annular bubble-trap. There is a diameter bar on which the pivot rests. The device is gimballed.
Card- Made of "plastic" type material, consists of a 2" rim held on wire framework attached to a domed float at centre. The card is white and graduated to 1/4 points and 0-360 degs. dia: 8" (20.3cm).
Needle-Two needles held in tubes and slung beneath the card. | Publisher: | "http://collections.rmg.co.uk/" | Subjects: | liquid compasses | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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