Need help with 69-70 grille problem

[VA72C10]

I purchased a supposedly new GM grille for a 69-70. He said it was new in the box and it was, but not a GM box like others i have seen. I got a decent price for it on evilbay, but nothing better than a few i saw that sold on there that were shown with the GM box. Is there a stamping i should/could look for to verify it's GM? ALso, there are some black marks that look like paint, but feel like scratches on two of the headlight areas. i test fit bezels and they won't cover. There are also areas where the black paint is not 100% within the recessed areas and around each of the stamped letters, there is haziness in the finish (some worse than others) For those who purchased new GM grilles, have you had these same issues? Trying to decide what to ask for (return/replace) and have my facts straight if i have to do a paypal claim. THanks in advance.