"Mint State" refers to a coin's condition, indicating it is in nearly perfect condition, showing no signs of wear or damage. Coins in this state are often uncirculated, meaning they have not been used in transactions and retain their original luster and detail. The grading scale for coins, such as the Sheldon Scale, categorizes Mint State coins from MS-60 to MS-70, with MS-70 being the highest grade. Collectors and investors often seek Mint State coins for their value and aesthetic appeal, as they represent the best quality available in the numismatic market.