I recently picked up what seems to be an unpainted sample/prototype deluxe Jazz. It has "H-1081" carved into the windscreen and a sticker on the rear of the alt mode. The plastic colours are slightly different than the final release version, and the clear windows are a much lighter shade of blue. I think this is similar to the prototype shown at botcon 2007, but it had darker greenish windows.
Any ideas where this could have come from?
(The lighting is making this look slightly gold - it is actually grey but has some dirt/grime covering it...)