While it's probably not, I have this lovely toned 1901
Indian Head cent that raises a bit of curiosity on my part that it may possibly be a proof.
It's exceptionally well-struck, with highly reflective luster and smooth surfaces with just a tiny mark or two. It really shines in the light. The rims are sharp, but I'm not sure if they're sharp enough to make it a proof.
But, I thought I'd ask.
The photos really don't capture the colors and luster.

