This coin is from 1821 with George lV. Looks like a hole in bottom of coin and may have been used as a fob for a pocket watch or something.
Coin real with some nice details on both sides (see pics). This item is in the category "Coins & Paper Money\Coins: World\Europe\UK (Great Britain)\Crown". The seller is "kojak007" and is located in this country: US. This item can be shipped to United States.