VERY RARE* STERLING TELEPHONE & ELECTRIC CO "PRIMAX" INTERPHONE U410 (EV3)

*VERY RARE* STERLING TELEPHONE & ELECTRIC CO "PRIMAX" INTERPHONE U410 (EV3)

Fantastic *VERY RARE* vintage 1.5kg wall mounted Sterling Telephone & Electric Co "Primax" interphone. Model U410. An interphone would be called a switchboard telephone today. This is a 10-line version. In great condition but obviously untested. After some research, the mouthpiece is missing from the front central box and the listening piece that would hand on the left hook is missing too. I cannot find a date for this but the Sterling Telephone and Electric company existed between 1899 and 1926 so I think this object dates to 1910s or 1920s.  

This website shows how the interphone would have looked with mouthpiece on front and listening piece on the hook on the left: https://www.telephonecollecting.org/Bobs%20phones/images/Sterling/U410.jpg

Measures 35.5cm tall x 15cm wide x 12cm thick. Weighs 1.5kg.

See photos for close-ups.

(EV3) - Ignore this, it is my International Shipping weight code.

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