[Dan Case]

I'll add to A-Snake's comments. I'll speak on leaf spring cars. The vinyl panel with elastic fitted top edge had leather reinforcement bindings on the side edges. It appears to be the same top dyed very thin split leather used to make glove box door stays, one of the two common designs of door pull straps, carpet binding under the doors, and carpet binding along the three edges of the carpet between the scuttle hoop and seat area (no other carpet edges on a leaf spring car were bound in any way).