I bought a Zenith Transoceanic 600 (I think) at an antique shop some yrs. ago. Paid $35 for it.
Best I can tell it dates back to late 40s.
I didn’t know Transoceanic’s were produced back that far and farther..
Plugged it in one time and it worked. But I’m afraid to try iti now as tubes, esp. one of them are next to impossible to find.
So it sits above my desk on a self.
My older Brother who was an electrical engineer, had a Zenith Transoceanic. I don’t remember the model but it only had a few tubes and also had an antenna which could be placed on a bus window with I guess suction cups.
I remember him playing it for me and being amazed that a radio with only something like 5 or 6 tubes could pick up so well.