It has a lot more detail than I'm used to (usually these are worn down to AG-VG before I see them) especially in the crown, and the surfaces are definitely mirror like. I didn't even think there were proofs for this date until I checked into it, apparently there were. Here are some photos showing the fields a bit better: The rims aren't flat on both sides, and it doesn't look like it's been polished (there is still luster showing, not that dull, lifeless look of a polished coin.) Tried searching for images online of a proof example but couldn't find one to compare. Thoughts? What do you think?