[DMXF]

While it would be interesting from a historical perspective to know the details of what you are referring to, the tag you claim to have may be worthless and quite possibly even a liability. There is a good chance the rights to the car still belong to the owner at the time it was stolen or their insurance company. Trying to sell a stolen vehicle or parts of it does not go over well with authorities. Also, some states have laws that prohibit trying to sell an ID tag without the car...