I believe what you have is a medal rather than a coin. If it looks like the image below, it is a medal made of copper with a very, very thin layer of gold (so thin that the gold value is insignificant).
The piece was struck by a private mint, not the US Mint.
Paying $2.00 for it was a reasonable buy. Based on a quick look at the selling prices of similar items on eBay, $5.00 to $15.00 appears to be all that collectors are willing to pay for these pieces.
PS If you haven't already done so, try using the 'Free Image Optimizer' link here on CCF. It nicely compresses most images so that they can be uploaded.