David,
I do not think that anyone has ever reported any success in having a local PPG (or Dupont) dealer or jobber come up with a formula from an original code.
At the bottom of the
Tech Tip on 1947-55 Paint Colors are instructions on how to directly contact the PPG Color Library (the Tech Tips link is at the top of this page).
Denny recently contacted the PPG Color Library and obtained a modern formula (called an "offset"). Denny reported that the Color Library phone number had changed to 1-800-647-6050 (so, I updated the phone number in the Tech Tip).
The Color Library should have a modern offset for Waldorf White but it is unlikely they will know what color was used on the painted speaker grill and glovebox door (but there is no harm in asking).
Good luck,
Tim
