Looks as to have been over dipped.. lack luster...From the images I say Au details but I don't see any wear ...but again it looks off....especially the obv.
I want to say something might be wrong (whizzed) but I don't think that is the case and will go with a problem-free MS 64
I think it’s a nice looking coin but I’ll not guess at the grade as these are not your photos. As you stated, these are auction images and an auction house can easily retouch the photos. I’ll wait for the final reveal.
The hairlines on the obverse portrait lead me to believe that the coin has been cleaned, and the grade would be UNC Details Cleaned. If they straight graded the coin, they will most certainly net grade the coin due to the over-dipping, and max grade would be MS62.
I'll wait the requisite 48 hours but very interesting comments so far. No one got it right yet but I'm not sure if the TPG did either. Everyone missed something but it's secondary.