STERLING TELEPHONE AND ELECTRIC Co. Ltd
Sterling Interphones

SECRET CONVERSATION
LAMP SIGNALLING DOUBLE-LINE INTERPHONES

No U 486

Wall Pattern, Secret Conversation Telephone, comprising:
Lamp Indicators, Standard pattern Hand Combination, Automatic Switch Cradle, Induction Coil, Call buzzer, Automatic Replacement Line Selectors.

Metal Parts are Steel Bronzed and Wood-work is Solid Walnut.

 

 

No. U 491

Table Telephone, comprising:
Same parts as No. U 486, but with the addition of Multiple Flexible Cord and Wall Terminal Box.

 

 


Taken from the Sterling Catalogue No. 11 & 12

 
 
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