$10 Liberty Gold Coins MS 63Grade DefinitionMS 63 is the contraction for the denotation "Mint State Grade 63". "Mint State" means the coin shows no evidence of being circulated among the public, but rather possibly saw use by banks in the U.S. and perhaps abroad. The "Mint State" designation begins at MS 60, and ends at MS 70. MS 70 is the top of the "Sheldon Scale", which was invented by Dr. William Herbert Sheldon in 1949. Gold coins, even those alloyed for circulation, are soft. "Uncirculated" coins this old will almost always show wear. $10 Liberty gold coins seldom grade above MS 65 or MS 66.Specifics of the GradeUncirculated $10 Liberty gold coins in grade MS 63 will generally have a fair amount of "Mint luster" or "Golden sheen" and will be pleasing to the eye. Any scuffs or nicks will be smaller than those on MS 62 or MS 61 coins, or they will be in areas other than the main designs. Flaws in the minting process may still be present, but the detractions will be less pronounced, or even undiscernible without low power magnification.