I can't put my finger on it exactly, but something about that coin is not right. The eyelid was the first thing that caught my eye, also the lack of detail of hair around the ear... the leaves on the reverse, just look.... well, odd...
If this coin was offered to me at a coin show, I'd probably walk it over to Sandy Campbell for a 2nd opinion on its authenticity - if he was not available, I probably would not buy this coin - I have learned to trust my eyes over the years... I'd rather walk away from a nice coin, than be caught holding the bag...