WHOA !!! A blank fender tag !!!
The thing that's trippin' me out is the whole " JOB NO 192 " deal ; car number 20
( via its sequence number ) , but number 192 ?
Lowest sequence number I've seen in person was "100304" , as in VL29G1E100304 on a Curious Yellow '71 Duster .
I'd say it's a safe bet that you've got a pre-production car there !
Congratulations :-)