Headliner...whats the difference?

[69bronzeT5]

I'm just going through my Paddock catalog looking for parts I need and I came across the headliner section and it brought a question to my mind....whats the difference between a Ribbed Headliner and a Perforated Headliner??




Can somebody post pics of both of them in a 68-70?

[Nacho-RT74]

perforated:


I guess ribbed is without perforations

[69bronzeT5]

ok