As far as authenticity goes, I can't match the die crack to examples I'm looking at, but that's not the end of the world. PCGS has one that has a similar die chip at the G, but not the larger die crack. I haven't looked at every WH out there, and I'm not an expert, so what I've found doesn't really amount to much. If there is a return option, and you decide to buy it, the first thing I would do is send it off to have it verified. If it's been cleaned, coins of this vintage get some decent leeway from graders as long as it hasn't been ridiculously harshly cleaned, which this appears not to have been, so whether or not it's been cleaned at some point in the distant past won't really matter. If genuine, it looks like a very nice example, and may hit MS grades, so value could be $1k and up. Just my non-expert opinion, and worth almost as much as your paying for the opinion!
Surfaces look a little funky, maybe some environmental issues and cleaning. Definitely some wear as well. I honestly have gotten nicer ones for under $50. Hibernias don't seem to have a big following and there are always plenty for sale. Check ebay sold listings, it is amazing how little they are going for.https://www.ebay.com/itm/1723-Hiber...D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557
