Is my car a Tag Job? Barracuda Decode...

No its not...its a serial number. Plain and simple. Show me where it tells you the country of origin, the original engine, transmission. The last six digits of a VIN number is at the back of a 13 digit VIN tag. That part is the old sequence number.

Words have meanings...you cant wish a '65 to have a VIN number... Just like '54 and earlier cars had " engine numbers" and had that number on the titles or registration.
Again here is a link for you to see it is a VIN on the tag in the door jamb. The sequence number is on the fender tag under the hood and does not match the VIN number on the tag.
Decoding VIN I.D. 1962 to 1965 Mopar