The Auto Color Library website has an original Ditzler/PPG color chip chart:
https://www.autocolorlibrary.com/pag...HorizontalTab1
The back side of the chart has info on the interior colors including which parts got semi-gloss and which got flat paint. Hopefully the codes listed there can be translated to current paint colors.
https://www.autocolorlibrary.com/pag...HorizontalTab2