This struck an odd note and sure enough, my post 163462 has a partial image of a car with "New Plastic Roof" and some numbers in roughly the same position on the car here:
https://tile.loc.gov/storage-services/service/pnp/fsa/8a04000/8a04700/8a04764v.jpg   
More than just a coincidence and another day, another modeling mystery.                                             Jim Dick - St. Paul, MN