No…not mine… 
Check out the middle headjoint in this EBay ad…
Piccolo whistle combination in metal, cool. I have no clue about that other
head joint. The end is capped like a flute, but the embouchure looks like an
organ pipe. Looks like the key of D.
I have a feeling it will be out of my price range soon.
I’m thinking the middle one is a flageolet mouthpiece with the tube missing. It looks an awful lot like my French flageolet minus the mouth part.
I think you are right…I found DCM 0446: Hercule, trade name, employed by C. Ullmann / Vertical or Horizontal Whistle Flute - top of blue case with flute and parts before it (shown in pictures)
The pictures there show the mouthpiece…but add to my confusion about how this thing works…even the “flute” head has the side slot !
Are the all whistles ???