Wow, 99 views and no takers
Guess this one is really lost -- the only other info I have is in the DF. Photo 7a shows what is believed to be the plane soon after capture, typical warbird display in a town square with a couple of guards and a small crowd looking on from a safe distance. It appears entirely undamaged which made me think of it being forced down or a mistaken landing.
All other photos are from the technical evaluation by the
Section Technique de l'Aéronautique (S. T. Aé.) at their Villacoublay test center. It appears that the plane was repainted entirely in a light color like gray or blue, rudder done in French tricolor stripes with the werk number lettered as "L.V.G 763"on the white stripe.
I was really hoping that the technical report would have survived since it appears from the pictures that the plane was closely examined. There appear to be references to it in
Aérophile from April, 1917, in their
Notes relatives Aux Avions Allemand section. My sketchy translation seems to show that they compared it to the LVG C.II. If this article references the Villacoublay evaluation, then it would indicate that the LVG C.IV was captured sometime in the first quarter of 1917 (which is consistent with the appearance of the DF photo 7a in the town square).
Anyway, anything that anyone can add to this is much appreciated.