STERLING PRIMAX INTERNAL TELEPHONE, 1930's

Common internal telephone for homes and offices.
Required only wires, two units and a battery.

Your comments:

• I just bought one of these, restoring it at present.should look nice when done. being a house phone, the dial at the top and needle now make sense, when turned to reach a certain number. each number a different room of the house. I imagine they were not cheap to buy at the time and adorned the walls of the richer household I feel lucky to have one, but, I expected them to be much earlier in date than the 1930s.A simple mechanism inside as you'd expect a museum piece.
  .......... Peter Dome, England. , 10th of May 2020
  
  

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