I was thinking the same thing, but who carpets a firewall? And the top edge has vinyl binding sewn on and it would never be seen.
Like I said, no idea of origin. I bought it pretty cheap and I figured if if was crap, it's only for this summer anyway. Because after driving it this summer, I'm going to dissemble for painting of entire car.
The seller said he thought it was from Victoria British and like 20 years old, although never used. It's actually not that bad. I never bought new Sunbeam carpet before though. It's not the molded loop type that Mustangs use.