Your coin is probably a replica trying to be the coin the previous poster provided to you. You provided photos and no other information. Weight, diameter, composition, etc. I have a pretty good idea that your coin isn't gold either.
Its a very rare piece to just find on the ground, so its better to lean toward replica first. It has to prove itself to be original. If it is, it's a wonderful find!
Harryg makes a valid point. Coin identification requires those factors mentioned. Diameter, composition, weight.
By the way, smart-ass probably isn't the word you meant. At least I hope not.
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