Yep, not factory. I though maybe you would know what it really was.
Very common dealer add-on called DuPont 1-2-3 simulated vinyl top textured paint that was put on all different makes and models back then. It is often mistaken for a factory option.
Yep, I did several back in the early 80's when I worked at Brent's motor company, you taped on the seam's and sprayed the textured vinal, the spray gun was similar to the undercoat gun we used.
