SIEMENS BROTHERS No. 309


No. 309A/A
As No. 310A/A, but without bell set. Suitable for use as extension telephone.


No. 309B/A
As No. 309A/A, but with Dial Dummy No. 5 fitted in place of dial.

A Bell Magneto No. 24 could be used with these phones.

 

From SIEMENS BROTHERS & CO. LIMITED catalogue No.500/54
 

 
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Last revised: January 16, 2012

FM2