My vote is fake based on the photos provided. Looks to be casting bubbles on both the obverse and reverse. That being said, I don't know too much about these coins.
Be aware that there are at least two different firms calling themselves the "Time Machine." One is a vcoins store "The Time Machine" owned by the frequent coin-show table holder Mark Reid. His material is genuine. Another is "The Time Machine Company" owned by David Liebert, who used to be a Celator columnist when that ancient-coin journal was still being published. His stuff is also genuine. There may be other "Time Machine" sellers, but let's not confuse them with the two good ones above.
The one I'm referring to is the vcoins store. I had a less than stellar experience with them and have heard the same from others as well. I've heard of other people receiving items from them that turned out to not be genuine. Artefacts, not coins so I don't know if that matters.
If it's the one I'm thinking of, despite the fact that they have "experts" supposedly authenticating what they sell, I know that they have been repeatedly condemned for auctioning fake antiquities. Like a series of expensive pre-Columbian antiquities recently offered for estimates of a few thousand that I have been told would be worth tens of thousands if genuine. I am not qualified to judge whether the critics are correct, but they are knowledgeable people, who view this dealer as a repeat offender. I can't speak to the coins this dealer offers. Edited to add: Time Machine is NOT the one I'm thinking of. The one that's been condemned is called "Timeline Auctions" and is located in the UK. So, never mind; I withdraw the aspersions!
I am far from an expert detecting fakes, and based on a picture of such bad quality, I certainly don't dare to say it is a fake. Anyway, the weight seems OK and it looks like Price 475 at http://numismatics.org/pella/id/price.475 One can see that some coins shown there also have what seems to be bubbles. Edited to change the Price catalog number
I voted fake, but that's only because the photo quality is so poor, as if the seller is deliberately trying to prevent you from getting a good look at the coin. I, too, see what appear to be casting bubbles on the reverse, but I can't say for sure. I just know that I wouldn't buy it unless I could see a better photo.
For the seller's asking price, you could buy one with better details and certainly clearer photos that give you a better feeling about the coin being purchased.
From that photo it’s impossible for me to tell. It could be an overly cleaned corroded real coin. Or it could be fake. Photos are never sufficient to determine authenticity, and are insufficient in many cases to dispute authenticity. Worrying about whether coins like this are fake or not is not worth worrying about. Buy from a respected dealer who has had the coin in hand.
