How old is your back seat?

I had to remove the rear seat back to get at more of the tar-like undercoating on the floor. When I removed it, I found some tags.

Hard to read, but it says, "Received Jul 27 1953 National Automotive Fibres Los Angeles"

Hmmm, wonder what "Final Run Old Style" means?

Hard to believe that anything made from such cheap paper has survived so many years.