Just 500 of these big $20 coins will ever be produced! Minted in stunning high relief from two ounces of fine silver, it is the first in a new series featuring the "Big Five" African animals. Shown in the head of an elephant styled like an African mask. The special incused rim features and African pattern to continue the theme. Issued by the Pobjoy Mint on behalf of Sierra Leone, this impressive and rare coin is housed in a custom case with a colorful box.