Minted by the U. Mint, it has a purity of 0.999 and a metal content of 1 oz. The coin is in uncirculated condition and has been certified by PCGS with a grade of PR 70. Mercanti’s signature, this American Eagle coin has a proof strike type and a fineness of 0.999. This silver coin is a great addition to any collection or investment portfolio and is sure to hold its value over time. 1 small milk spot on the face next to the T In LIBERTY.