Thousands of ancients coins are auctioned every day and unless you're an elite collector, another one will be along soon. Chill out, research the type, and be reassured that you'll find the right one for you without being under the gun (said without even looking at your thumbnail pictures because in light of the above statement, it doesn't matter )
If you can't authenticate it and you're not buying from a good dealer you're better off not buying it and waiting until you can get it from a better dealer.
Buy authentic coins from people who know what they're doing and learn as much as you can about coins, dealers and the market. It takes time and a willingness to learn and it's not a hobby that rewards impatience. Above all else it takes a willingness to accept that sometimes you're in over your head and the best option is to defer to more experienced people in this hobby(aka dealers who have done this for decades and back up their expertise with a guarantee).
Hey Pal, You can do it the correct way or not. Ignorant, foul mouth folks deserve all that's coming to them so hurry up and buy it. I hope it is bad as it looks and you end up buying a fake. That should be your first lesson. Here is another one, folks who rush into things with no idea of what they are doing generally regret it. How about this...asking us to authenticate a coin as 100% from a photo is plain stupid. Some folks here know less about ancients than you. Others here know more than you ever will. It appears they have given you some good advice. To turn around and bad-mouth them shows you have no class along with no brains. I should report you so you get kicked out of here; however, I will not because many others probably give fools second chances. So, as I wrote above, I hope you spend your money and get fleeced! lt will be a good start on your new hobby.
I've done pretty well with the advise I've got through this group with the patina coins but now am looking into the larger silver coins which from the last 4 have been fakes. All it takes is a few good coins and you'll have the touch but I just haven't had the chance to buy a real one yet