So this was an overdue project. The seats in my car came from a doner car that Ross turned into a Pack-Up. It's original upholstery from a 54 Super Clipper. According to Ross, this also was an extra upcharge version of upholstery over the standard '54 Super Clipper upholstery.
But as with pretty much all these cars, the foam rubber cushion in the seat has petrified and turned to dust over the last 68 years. Every time I sit on it, I end up with yellow dandruff all over my floor.
I can tell you the construction is for sure a bit different than what my '54 Deluxe seat had. I don't remember the bottom horsehair layer or the plastic sheet layer with the support wires in it.
So here are the pics of me disassembling the seat. It's held together with copious amounts of "hog-ring" staples.
The upper gauze-batting layer is in very good condition, so I will reuse that. Also, the horsehair and plastic layer is also in very good condition; they will get reused as well.
I am going to replace the bottom burlap layer as it's a bit swiss-cheesed and, of course, the foam layer.