[Critter]

If I remember right they were from a mid to late 80s Caprice, Pontiac Parisienne, Olds Delta 88, etc. I am positive they were from GM sedans at very least. Here are some pics. Notice how the hinge breaks over and stays in place. They could be mounted up or down. I plan to use mine for hidden hitch purposes. Incidentally, these pics are of the backside, the license plate side is face down.