What does MS64 mean for coins?

MS64 refers to a specific grade in the Sheldon Coin Grading Scale, which is used to evaluate the condition of coins. An MS64 coin is considered "Mint State" with minimal wear, showing only minor imperfections visible under magnification. This grade indicates that the coin has strong eye appeal and is well-preserved, making it desirable for collectors. It is one step below the higher MS65 grade, which denotes even better quality.