[Milsurplus] Old German Set, info wanted

[Military1944 at aol.com]

Old German Set, info wanted.
 
Can anyone help identify this old German Aircraft set ?
 
pic at:  _www.qsl.net/g4bxd/newpics.htm_ 
(http://www.qsl.net/g4bxd/newpics.htm)    
 
2 valves, regen, guess long wave.
 
Any info greatly appreciated. 
 
cheers, Ben G4BXD