Charminjack:
I originally worked out the who, what, where, when in September 1988, on this machine and sent it off to Greg shortly after wards. It was an early Fokker built D.VII in the D.451/18 to D.499/18 range. It was published first in "Over the Front" Vol.7, No.1, Spring 1992, Greg and I were co-authors.
Mimmi has been copied by several illustrators, and most have not got it right in some details. Since then, I have not seen any other photographs of Mimmi, of any later version. Mimmi had a Mercedes D.IIIaü engine, No BMWIIIa to my knowledge. You might call it an active imagination. Mimmi was flown by Off.Stv.
Wilhelm Hippert of Jasta 74. From what I had found this was around or during October 1918, when Jasta 74 was based at Mercy-le-haut Airfield.
Blue skies,
Dan-San