Are you still looking for license plate frames from Thomas Pontiac in Parkersburg WV?
If so, I may be able to help. I have a pair of them. One front w/screw holes at top of frame, and one rear w/holes at bottom of frame.
I do not want to sell these, but there is someone on a Facebook group for Pontiac Literature and Memorabilia, who is reproducing the old decals and putting them on frames that look identical to the frames I have.
I could take pictures of mine and send to you, and you could contact him to see what he could do for you.
Let me know....no charge on my side of this. ✌