Unknown trim pieces — can you identify?

The body shop included these with my Barracuda parts. I think they mistook them for my decklid trim strips, but that are completely different, and very likely not Mopar. I’m guessing mid-60s Chevy. They are marked “front top” and “front bottom” (apparently the shop guys couldn’t read), and the two pieces are exactly the same but flipped vertically (as you would expect from a top & bottom set). Measurements are
62.25 x 0.5 x 0.875 inches. They have mounting studs, but I couldn’t say that if have the full complement.

Yours for the price of shipping if you can identify them, or if you just want them for whatever reason.

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