1968 A-body 4-speed Console Question
Here is a pic of the underside of the original shifter cover from a 1969 console from my Barracuda. The cover appears to be made of a cardboard or similar thick paper
with some rubberized coating on it. Then you can see where it looks like it was hit with undercoating (factory AC car thus undercoated; undercoated after car is together?). You can see additional coating on the underside of the carpet to help stiffen the area. Perhaps dried glue from placing the cover on the carpet. I can take some measurements if helpful. Almost looks like you could model a replacement from a ball cap or other curved item.