Electrosound began manufacturing in 1946. By 1955 they were importing SABA brand radios from West Germany. By 1956 they were known as Electrosound Saba. At this time they were making large custom "Three in One" TV-gram units using Saba radio and television chassis. Your radio could not be from 1917 based on the history of the company. Here are more details about your piece-
Model: Serenader and maker is Electrosound Pty Ltd, Sydney
Category: Broadcast Receiver /past WW2 Tuner
Tuned circuits: 7 AM circuit(s)
Power type and voltage:Alternating Current supply (AC) / 240 Volt
Radio looks like a portable but has no connections for a DC supply.
Uses two power transformers, HT and filaments.
Rectifier is by two selenium diode banks.
This radio has a current value of 250AUD.
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