Artificial roof horizon tray
Steel, black-lacquered tray with four levelling screws, and brass-framed roof-shaped cover. Two sides of the cover have clear glass panels, at an angle of 90 degrees. Signed on the side of the cover 'Cox, Devonport & Plymouth', and marked H O [broad arrow] 21. Spirit level, wooden jar for containing the mercury when not in use,
Object Details
ID: | ZBA0751.2 |
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Type: | Artificial roof horizon tray |
Display location: | Not on display |
Credit: | National Maritime Museum, Greenwich, London |
Measurements: | Overall: 34 mm x 178 mm x 134 mm |
Parts: |
Roof artificial horizon (Artificial Mercurial Horizon)
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