That was my first thought, too, Dave, but to my knowledge (having been there many times, since my best customer is there) Copenhagen railway station (presumably the largest in Denmark) just doesn’t look like this at all.
Quite a few German designs were built by the French during the war, sometimes with new French designations, but I am afraid that I don’t have any deeper insight into such matters as engine fits. One day I will find the time to gather and read a few more French aviation books!
R/T stands for Radio Telephony (speech, using audio frequency modulation on the carrier wave). I agree that you can choose either speech or Morse (but my expertise is in radar!)
I have a photo here of the M1 from a different angle, and on the original I can see what appears to be a narrow skid at the centrr of the belly – it may not show up in the lower resolution photo that the Forum can accept.
The source is the book “French Skies” by Jacques Notinger.