I follow a group on FB for the later B-bodies. A guy there recently picked up this '77 Fury and it had this 'show car' tag on it. Aside from the obvious, any significance to it? He didn't post the VIN but, if that's the sequence number, is it a preproduction car?

As an aside, guy stated the car has 100K miles on it.

I have no connection to the buyer or the car, I'm just curious because I've never seen a tag like it.