I recently found this old aluminum chair at the local salvage store.
It was pretty nasty, with musty vinyl and flaking paint.
I found a nameplate on the bottom which read:
"Midwest Fireproofing Company"
I took the seat frame down to aluminum and polished/sealed it.
I also recovered the vinyl cushions and painted the base.
I'm pretty happy with it and it is now my new desk chair.
