They acutally did make a tailight lens in 72 that had the silver outlining around the red portion of the lens.
Yes you are correct, the skylark custom had them I beleive, I have a NOS set here and debating whether to paint or keep original. I just assumed he meant GS. later Tim
In 72 there was a bumper without the rubber offered . Look at the options my car has bumper protective strips as an option . The parts manual shows it and a member here has a NOS one . But if you have the front rubber I would imagine you got the rear with it unless someone made a mistake on the line .
Some options were mandatory. I have heard some of the very early cars may have been missing it as they used up 71 bumpers, but my understanding was all 72 were supposed to have them. The optional bumper rubber may have been for the bumperette?? Who knows, stranger things have happened... later Tim