Sorry, but its not original upholstery. The cloth is not a GM cloth design from the era, and the seat cover "STYLE" is not one that was used either.
The covers were custom made by a shop at some point in the cars history.
These seats themselves are most likely original to the car though. if the bench seat backs fold forward and have no locks, it is a 1966 seat for sure. (67+ seats had a seat back lock mechanism with a little lever on the lower back to release it)
The covers were custom made by a shop at some point in the cars history.
These seats themselves are most likely original to the car though. if the bench seat backs fold forward and have no locks, it is a 1966 seat for sure. (67+ seats had a seat back lock mechanism with a little lever on the lower back to release it)