Coin looks quite nice, but a bit too many marks in the obverse left field for me. I'm going with 64PL
MS 63 PL. photograph does not show a PL coin, but the die polish markers are there. Try a different lighting or angle, as it isn’t flattering to the coin.
MS-63, perhaps with a +. The big mark in the left field in from of Ms. Liberty's eye is really holding it back. If that is on the holder, it's an MS-64. I don't see P-L here at all; it's too hazy.
MS63 possibly PL. I would have said 64 but the unfortunate hit in the left obverse field holds it back.
You'd know. I've not seen it, though, much less thought that. But thanks, that's a plausible explanation.