Welcome to Coin Talk Tabitha. Could you post a picture of the obverse and reverse of the coin? It will make it much easier to evaluate what you have. Pictures of the entire sides of the coin would be best.
I did see the pictures. The coin has had one side ground down by someone. Perhaps to make a button or affix it to a piece of jewelry. This is Post Mint Damage and not a mint error. No extra value.
Welcome to the neighborhood, Tabitha! I see that you got caught in the "Coin Talk Poll Trap". Once you click on the Poll space, there is no escape. You must post something, anything!, just to get out no matter how stupid it may be. Your coin is post-mint damage (PMD). It appears that someone used a lathe to remove the obverse. Chris