Australian Post Office
Telephone No. 138AT

The solid-back microphones originally fitted to the Telephone No. 38 were mostly replaced with a Bakelite moulding containing a standard carbon microphone inset (these assemblies were made by Siemens Brothers).  These refurbished telephones were known as Telephone No. 138AT.

The CB version is called the Telephone No. 136.

Click here for more information - BPO No. 150

Click here for the History of Candlesticks in Australia

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Last revised November 22, 2021