(click on pictures to enlarge)

 accurate

Earlier models were cheaply produced flattops, with a Welsh type mechanism, standard Z-clip and eraser under the cap.

Later editions were standard middle joint, nose drive pencils.

No imprint or other markings available. 

 

 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
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