Found this on Ebay. I always wanted an Early Silver Dollar(ideally a small eagle) , but the wear seems suspect. In particular at the rims and most concerningly the obliteration of all detail around the eagle's head (which importantly is a common place for a copy stamp). So I am thinking I will pass but thought I would get some opinions. I also love learning more about these type of things. Also I note the seller is not a coin dealer and has 100% feedback so they may have been taken. https://www.ebay.ca/itm/154268165138?_trksid=p2380057.m570.l5999&_trkparms=gh1g=I154268165138.N36.S1.typeWATCH_ITEM_ENDING_SOON.R1.TR2
It all depends on your budget. Assuming that this piece is genuine, which I can't speak to one way or the other, this is a very low grade for a Bust Dollar. These coins didn't not circulate that much, and there are many pieces left in VF or better. An example like this is really only a filler. It would not be that easy to sell if you were get a better one later. I'd save my money, if you really want one, and look for an NGC or PCGS certified coin in higher grade. The 1799 is the most common date in the series. The reported mintage is 423,515, and the dollar was the only silver coin that the first mint issued with the 1799 date.
It doesn't look obviously fake to me, but since it's listed in an open auction, you'll have to outbid other people who are less careful, or more trusting, or think they know more. Unless you're completely confident that you can authenticate it, and that you know a reasonable value for it (with all its damage including a hole), I'd skip it.
Let's say the coin is real. In G4 it's around $1000. It has a strong date, which is a bit unusual considering how much wear is on the reverse. There are a number of damage marks in the center on the obverse. I make this coin AG-03 details. Currently the auction is at $340 but there is almost a day left. I guess if it is real it could go for $500, but I am not a buyer as the condition is not worth it to me.
I'd say it is real, but no one has mentioned that it has been holed and somewhat crudely plugged. Variety is B-4 an R-3 coin.
It does have big issues. I going to pass its a $500 and that a bit to high for the quality in my mind. PCGS auction results tell me that I can get a nice straight graded one in a price I am ok paying so I will wait