Jeff that is interesting, I have never seen a original car with any thing but the jute pad. The original jute pad was a dark grey material. It is very hard to find one intact as it is favorite mouse nest material. The reproduction material is not close to the original. At the very least has to be dyed or painted. I know the press board panels were used on the 65-66 cars.
Yes the just is often torn or sagging depending on how the car was stored and the pressed paper tears and breaks apart so we find few intact in either style.
Yes interesting. Appears to be the same material as used on the 65 and 66 though don't have a picture from the interior side to see what that side looked like.
Kind of interesting that I could find a couple of examples with VIN's in a similar range if they weren't installed at the plant. Don't think owners would make one for a car (most didn't seem to car when they disintegrated and fell apart) and don't know were they would get the large sheet they would need to make one from. So that in conjunction with multiple findings so far, IMHO we should at least be open to the fact that they were used at least at San Jose for a period. We've discovered so many other details unknown this way over the decades.
Looking a closer at the example posted above since it is the clearest of examples, we notice that the divider board has a precut opening like the 65 and 66 examples that allows a sheet metal tab in the prepunched hole to hold the panel in place. Maybe San Jose had to go back to the 66 supplier for a while due to supply issues.
On the jute style there is spray adhesive that is sprayed along the front edge of the rear package tray reinforcement and down each corner for about 6-8" to hold it in place since it lacks rigidity of the press paper board
Also considering separating this trunk divider off on its own thread since its kind of taken over the thread and we've ignored the underlayment request because of that