Jar
        
        A polished brass bottle with a screw-on stop, for storing the mercury when not in use. For the artificial roof horizon.
              
      
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Object Details
| ID: | NAV0003.3 | 
|---|---|
| Type: | Jar | 
| Display location: | Not on display | 
| Creator: | Unknown | 
| Date made: | Unknown | 
| Credit: | National Maritime Museum, Greenwich, London | 
| Measurements: | Overall: 85 mm; Diameter: 64 mm | 
| Parts: | Roof artificial horizon (Artificial Mercurial Horizon) 
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