Question about original gas tank carpet screws

[powell72]

I've done some searching and would like to confirm this, so the 69-72 factory bucket trucks had the oblong washers and the carpet folded over top of them to cover them up, and 67/68 trucks just had the carpet screwed to the cab wall minus the washers with the screws showing, correct? Did the 67/68 trucks have 12 screws also? Any pics of original 67/68 buddy bucket trucks with the tank carpet still there (long shot?) would be appreciated. If that's not asking too much, maybe a close up of the screw head?

Thanks!