My May 22, 1969 San Jose R code SCJ 4spd car has no indications of clips or staples...no seal present. It has 100% of its sheet metal too so the support is original. Not saying it couldn't have had one just clipped on at some point...but don't see any proof of it being there. My late Oct 68 Grande doesn't have staple holes either and it's a Dearborn car. It was taken off the road in 1975 due to a head issue and I bought it 8 years after from the original owner.