Currently on ebay is an aluminum model of a lifting body. The rear of the vehicle is that of the M1 or M2, but the nose is distinctly conical. The lack of useful volume leads me to think that if this is a legit wind tunnel model (rather than something someone just knocked out at a machine shop for giggles), then it’s not a design for a manned vehicle, either test or operational space logistics. Rather it would be something like:
1) A basic subscale research vehicle like ASSET
2) A concept for a maneuverable entry vehicle for a military system. An ICBM warhead, perhaps designed to glide either for range extension, to avoid incoming ABMs, or to maneuver to avoid tracking systems and come in from unexpected directions.
3) Or it’s just a vague, generic “let’s look at everything” shape.
The nose of the model does not inspire a great deal of confidence… it looks a bit unfinished, with some sharp-ish corners that don’t seem like they should be there.
If anyone knows better, by all means speak up…