Rally dash redo

These scripts were molded of black plastic. We know the factory was capable of placing chrome on only the face surface, leaving the sides raw black. Looks like that's what they did, for 67 anyway. The chrome left there over time too leaving most of us with a all black script. I've got 1 67 script that still has a couple of small spots on the face of it. If there had even been any chrome on its side surfaces, some of it would have remained.
I wish I took more photos. Not that mine was a great example to begin with.
Lighting isn't the best but, but it agrees with your observations.
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Depending on how things go on my touch up on the backside, I may remove the script and paint the sides black. Unfortunately they used epoxy instead of heat staking or abs cement.