Hi,
Ok, well, I cannot be sure this is not real even though I did read what you posted following the link. I can tell you this, several of these were found buried near the ship wreck. Here is another one, this one looks copper. I am not sure what to do nor do I have any idea what they could be worth.

Thought this coin would get a little more pub![]()
if those were the real deal , interesting but not true examples