The picture in from reply #4 is of 0F02G1693XX Built on 3/16/70 -- From the Marti Report
It is a 1 owner car (I am the 2nd as of 24 days ago), AFIK it has ZERO restoration work done to it. I am still in touch with the original owner so I can ask.
You mention the white showing through-- It is scratches, showing the color of the "plastic" where the black dye is no longer there. Both sides match, and I see no signs they have ever been removed.
I assume the raw panel material is whiteish in color and dyed accordingly.
I welcome your thoughts.
B