The 70 Strato Chief that's near my place and is a total rust bucket has likely the nicest 70 heater control I've seen. Now if I could just talk the guy into selling me the darn car I'd harvest the very few pieces good pieces out of it.
I don't know, but I assume the 1970s woodgrain ones held up better than the 1969 brushes aluminum ones... they'd almost have to, as the aluminum ones were junk by the 80s!
I can't help but wonder how long this NOS unit will look decent once installed....