This coin is part of a series that was started in 1986 and has proven to be immensely popular with collectors. This 1990-S American Silver Eagle was minted from one ounce of .999 silver and has been authenticated, encapsulated and graded by Professional Coin Grading Service (PCGS), one of the countries top third-party grading services, as Proof 69 Deep Cameo, just one grade point from absolute perfection.