I brought home the seat. It is an amazing thing, with a heavy Oak frame and full springs like an old fashioned sofa. the heavy vinyl covering is mostly intact (it could be used as is), the plasticy coating is kindof rolled up into little balls. I may have finally found an upolstery material stronger than mb tex! There is some evidence of Mice tenants but the stuffing feels pretty good to my azz

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My Grandpa Lauren built them to last (he worked in the upholstery shop at Studies in 1939.)
Leather was optional, vinyl standard. I think I will go with a simple brown about the color of chocolate, with vinyl on the sides and leather on the seating surfaces....and vinyl on the door panels and headliner. (no kidding it had headliner from the factory unlike most later pickups which had bare metal.
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.

[SIGPIC]
..I also have a 427 Cobra replica with an aluminum chassis.