Looks like a copy to me. The detail isn't sharp enough. The grade is also not very good, which considering they didn't circulate in the real world at the time, or at least only a very few did should raise eyebrows. Does it have a milled edge? Doesn't show if it has, A proper one will cost you money, but it will also have resell value. A copy might cost hundreds instead of thousands, but a dealer will give you a couple quid for it, and that only to obtain an example to compare.
Buy a decent one from a reputable dealer, not ebay or Alibaba