Looks AT from those pics. If there's a return privilege, it might be worth the gamble, but I'd probably pass. You can find nice late date Buffalos all over.
No. That is clearly AT. You should return it as soon as you get it (or, attempt to cancel your sale before the seller ships, if it isn't too late).
Probably cleaned first also, then AT. Pass, if you do buy it you would have it for a long time as it would be very hard to sell - unless the Ebay bidiots are out in strong force!
That was such a nice buffalo, until some idiot had to ruin it by putting it in a potato and baking it in the oven.
I wouldn't buy it simply because the reverse is about 33% larger than the obverse. It's definitely a fake! Chris