So if the restoration houses say "PEARL" they're really talking "IVORY" (711)
That clarifies it greatly, and then some......thanx Jerry
And even though my car is a numbers matching unrestored survivor: I had always suspected something was not right with the interior of my car - what with that parchment trim framing the black headliner. It looks totally wrong and totally stupid! But at least now I've got the correct answer to those who doubt whether my interior is original. What was Chevy thinking indeed.