If that is an Ancient Gold Coin, which I hope it is, 2 things will happen, it will make the Banner, and Scott Wolter of America Unearthed will be contacting you to explore that site to try and rewrite the history books.
I was hoping this mystery would get solved before the thread got buried. Did the OP ever post any test results to see if it is gold? Are we all assuming it is a modern reproduction of something?
I had a few other things tested also that did not turn out to be gold. Lol I'm a goonie at heart. I thought I found a bar of gold but I guess it might be bronze or copper. Its really old though. I found these things about 100 feet from the colonial coins. Maybe you guys know what they are. I know the one thing is a candle snuffer. I call the other one heart bar-ake hotel. Lol.