They aren't real. Period. They might be 30 year old leather fobs, but the stuff printed on them was just put there, like yesterday. Look at the one Jeff just posted... Do you people honestly believe that GM put out fobs with the Camaro logo on one side and Central Office Production Order on the other? Oh, and the phone number? 9561 of course. The Nickey, Fred Gibb, Smokey Yunick, Royal Pontiac, etc. ones are just as made up. C'mon people...
I know you want them to be real, but they simply aren't. End of story.