I have no experience with these, so I used an image from Google as a guide, and here are my thoughts:
AT BEST, this is a "reasonable approximation" fake. The date should be centred, but isn't; the shape of the nose and mouth are wrong, and it looks like someone applied fake damage to attempt to hide this; the raised, reeded portion of the obverse (don't know what that's actually called, sorry) appears too large; the wear across the face appears too even and smooth to be natural, given the wear across the rest of the coin; the stars are mushy and sloppy, not well-defined like the real coin I'm working from.
That's the obverse. Then I pulled up the reverse pic: This looks better, but that edging still looks funny and perhaps more importantly, the wreath is, no-holds-barred, WRONG. Take a look at the left-hand side of this wreath and you'll see a place where there are two berries. Look to their left and see another one (you'll have to look the image up on Google, I'm afraid--CCF keeps giving me a Not Allowed error when I link). The leaf on the
ebay coin is too small (look how far the one on your selected image extends), but there's still no room for that single berry. This is a personal quibble, but it also seems to me that if the rest of the coin is so dirty, the raised areas shouldn't be so nice and neat.
My verdict: fake.
(okay, large cent collectors, how'd I do?)
ETA: The website I used apparently can't be mentioned on CCF, so I found another picture of the matron head from another site. My point stands and I still stand by what I said the first time.