I got this coin several years ago and while not the best, was pleasing. So I left it for grading at the TPG. Below are pictures & because obverse toning so pleasant tried to capture it with an angle shot: GTG if you’d like
AU details, cleaning - this from PCGS. I have seen a lot of these crowns and agree with the AU, but I have seen much worse to straight grade. Anyway I like the coin and the 1847 date better than the run of the mill 1844 & '45 coins...
The problem is the retoning after the cleaning looks unnatural. So PCGS can call it AT or cleaned. Since it wasn't technically artificially toned, they go with cleaning.