Club,
I found this website while searching on SEMA.org. It's to BASF, which manufactures paints for automotive use.
It gives a fairly complete listing of paint chips for Chrysler/Imperials up to 1972.
I am only posting this because someone else on the list had asked for paint chip examples for their Imperial
https://www.basfrefinish.com/cgi-bin/capbsm/java/Sitelet.do?BV_SessionID=@@@@1912173945.1168023724@@@@&BV_EngineID=ccceaddjklfikhfcefecgefdgjhdfmo.0&action=""
Sorry if this has been posted before.
Scott
'73 triple black Imperial coupe