This 1990 S American Silver Eagle is a highly collectible coin minted by the U. Mint with a fineness of 0.999. The coin features a beautiful proof strike type and is ungraded. It contains 1 troy oz of silver and comes in a box with a certificate of authenticity. The American Eagle coin is a popular choice for collectors and investors alike due to its iconic design and high quality. This particular piece is a great addition to any collection, especially for those interested in silver bullion.