This pad that fits to the rear seat squab is made from a rubberised horse hair material. Basically hair and a rubberised solution are mixed together to form the pad itself. This item is about 2" thick and can be glued the the back board and the the seat cover fitted over the top.
Up to end 1968 small wiper wheel boxes with 22 Teeth are used. The gear wheel inside the wiper motor has 130 stamped on it. If you fit later wheel boxes to an early car then the sweep is far too small.