Here's a chance to own a unique radio set with a lot of history. The set appears to be a chassis only, so isn't complete, but it's a starting point. I've had two of these sets, they require three dry batteries of different voltages, one battery is for negative biasing the valves from memory, a very strange idea.
https://vkclassifieds.net.au/classif...uff-51352.html
These little dry battery sets were issued to various 'stay behind parties' up in the Islands , where they proved to be very successful. I've read a few accounts , here is one
https://thelastcoastwatcher.wordpres...-tribulations/
The ATR4 sets were built in Melbourne, which was where the Radio. Corps. factory was located , in South Melbourne. One of their brands was Astor , some of us can recall Astor TV sets. The set has a few nomenclature variables, ATR was part of the RAAF system , but the set has also been found with U.S. Signal Corps. tags.
Pic of one in use
https://www.awm.gov.au/collection/C257736
Pic is from this source
https://groups.io/g/wireless-set-no1...tion/105379513
Another page:
https://www.kurrajongradiomuseum.com.au/index.htm