Eighty years ago this month, the May 1945 issue of Radio News showed this transmitter-receiver mounted in an “innocent-looking traveler’s suitcase,” and seized from a German spy by agents of the FCC Radio Intelligence Division.  It was said to be substantially built and of an up-to-date circuit design.  It included a tool set, vibrator power supply, and wire for erecting antennas.

You can see what appears to be the same model at the Imperial War Museum.