External spring type engine indicator
        
        Engine indicator in a box with four springs, a radial divider for indicator diagrams and a triangular shaped piece of wood.
              
      
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Object Details
| ID: | EQS0406 | 
|---|---|
| Collection: | Machinery and fittings | 
| Type: | Engine indicator | 
| Display location: | Not on display | 
| Creator: | Dobbie McInnes Ltd | 
| Credit: | National Maritime Museum, Greenwich, London | 
| Measurements: | Overall: 140 mm x 260 mm x 160 mm |