This mystery didn't last very long.
Yes, it's a model of the Flettner 282. Incidentally, a person is currently building a full size replication of the 282 that is intended to fly.
Flingwing207 had the best grasp of the answer, for some unexplainable reason.
cyclic_fondler:
"you wouldn't be associated in some way to this [UniCopter] project, would you?". Only if it works.
