This is the third year in which the U.S. Mint struck Silver Eagles. It struck both Uncirculated and Proof coins just like every other year. There are five Uncirculated Silver Eagles that have mintages lower than 5 million. The 1988 Uncirculated Silver has a mintage just over 5 million. Therefore, the 1988 Uncirculated silver Eagle is one of the more common dates. Most 1988 Uncirculated Silver Eagles range from MS66-MS68 condition. Fewer grade MS69 due to spots and scratches and from being mishandled or stored improperly. In perfect MS70 condition they are very scarce.