1971 Voll Cab Restoration Pictures
The package of documentation I received from the Neatherlands contained some pictures of the full restoration done in September of 1985.  When I first saw these pictures I though the original color might be Condorgelb which is "Corn Yellow", but the registration data confirms it was Polaris out of the factory.

During the restoration, the car was shipped out to an undercoating process which coated the entire undercarriage in a waxoil protective film.  After coating it was sent back for final assembly.  It looks like they changed out the steering wheel and removed the faux wood dash during the restoration process.