Seller's photos, not mine, so sorry about the poor resolution. Anyway, I'm guessing overdipped 30-40 range, but seller is saying 50+ (Sheldon scale). I realize that the strikes were different through the years, but I don't know enough about the series to know what is weak strike v wear. In hand, I could tell by the luster and see if it's cleaned, etc, but from a low resolution photo? I'm somewhat at a loss. I tried using PCGS's Photograde for comparison, but the problem is, of course, the lack of late-date CBHs in their library.
Here is an 1836 PCGS 50 (courtesy Heritage) and I think yours is at least comparable to it. Cleaning would not surprise me, but I cannot tell for sure.
I'm curious on how this would be the case? The AU50 PCGS example clearly shows less high-point obverse wear than the coin in the original post, and the reverse wear is substantial enough that it'd be in the VF range. If I had to split grade the coin, I would be in the: 45 Obv / 30 Rev range, which is how I settled on 30-40 range net, since I wasn't sure how severely the wear on the banner impairs the grade. Even beyond that, the surfaces look cleaned/polished from that photo.
It doesn't really matter if it's a good XF or a low-end AU coin as it looks cleaned. If the OP provided better pictures we could say more about the surfaces.
The coin is over-lit so I would recommend not putting too much stock in interpretation of its surfaces.
I thought it would be easier to motivate the seller to post better pics if I wasn't the only one who thought the coin looked details VF/XF range. I just messaged him.
Josh, if you think it's a problem-free AU, why not get it graded? I would also check the O variety, you never know...