It looks like something built by the russian military
Funny you should say that, I was at a vintage audio fair yesterday and they had a Russian Tank transmitter/receiver(they were actually made in Canada to help out with shortages) for sale.
Last time I had one, it was confiscated by the General Post Office, along with my Ferrograph reel-to-reel, for transmitting a much needed short wave music station across the weald of Kent in '62.
I've long suspected the GPO of being in cahoots with an organisation with which you have close ties! If you see a 19 transceiver and a Ferrograph in a store room, can I have them back? Or a Revox would be a welcome substitute!