Interesting intake on Facebook tonight

Pro Stock was decent stuff. It was a line sold exclusively by PAW (Performance Automotive Warehouse) through the 70s and 80s.
Pro/Stock was also sold by JC Penny, sears and several other companies in the the late 60's thru the 70's (although JC also had their own line called A/FX for a time).

you are correct though, PAW had it as their house brand for years and years.