1967 Camaro Rear Seat

[70 copo]

This is a bit of a mystery to me and I kept this seat assembly because I had not come across this variation in a factory seat cover and frankly I put it away in storage forgot about it.

So this seat came out of a basic optioned Bolaro Red RS Vert 30 years ago that had no rework or restoration and was basically a very original rotter.

Anyone here ever noticed a variation in the material usage as evidenced on this cover at the top??

Hog rings all match for construction and patina, as does the original packing, backing and binding. This looks untouched in every way-- except I cannot figure the top of the seat cover construction.

I have theories, but they are just that...Anyone here have information that they can share?