Quarter glass question
Restoration Specialties (who I highly recommend) also sells the repro pieces.
http://stores.restorationspecialties.com/search.php?search_query=CHRY32230&x=17&y=11
It appears from the description that R/T's is 'price each - two required' while Restoration Specialties is for a pair (at less than half the price???)- so you may want to talk to them before purchasing either.
The illustration looks very little like the actual piece...
Old piece....
New piece and white plastic glass retainers...
A short, fat pop rivet on each side can replace the single factory rivet removed.