Printing plate
        
        A plate for printing Admiralty Standard cards -consists of a steel printing plate engraved with a 6.5" (15.9cm), graduated to 1/4 points and quadrantally in degrees. Has a "Royal Crown" below N point decoration.
              
      
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Object Details
| ID: | ACO0976 | 
|---|---|
| Type: | Printing plate | 
| Display location: | Not on display | 
| Creator: | Unknown | 
| Date made: | 1840 | 
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory | 
| Measurements: | 216 mm x 222 mm | 
