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Date: |
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Description: | C. JOHANSON ALTONA t=80 No 3049
Liquid compass.
Bowl: Dark green painted brass, glazed bottom. Inside of bowl painted white with four black painted lubber lines. Mounted in brass gimbal ring 9.4" (24.0 cm)
Card: Diameter 7.1" (18.0 cm). Paper of the Kelvin light dry type, gradusted to 1/4 points. The N point is indicated by an 'Owl'.
Needle: Six needle magnets suspended below card on a thread framework in the Kelvin manner.
Pivot: Brass pivot stem fitted with a steel pivot point is attached to centre of bottom glass. The pivot point engages in jewelled pivot cup carried at the centre of the card.
O.A. Height 4.0" (10.2 cm)
Inscription.
caption: Record Shot - Do not reproduce. | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | liquid compasses | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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