The grading scale adopted by Classical Coin Grading is based on the Sheldon scale, international measure for the conservation states of coins around the world.
The Sheldon scale is applied to ancient and modern coins considering the peculiarities of the reference issues. After classifying and assessing the authenticity of the coins, Classical Coin Grading assigns the coin a code and a number that correspond to a specific conservation status.
With regard to the application of the reference judgments, a single distinction is made associated with two types of coins: ancient coins and modern coins. Given the dating and the technical characteristics that distinguish them, ancient coins are valued according to a special process that provides, in addition to the normal assignment of the score, a bonus/malus rating based on centering, patina, flan characteristics, style, minting imprint and glance.
|Code||Type of minting|
|Mint state. Applies to coins with a degree of preservation from 60 to 70|
|Proof (collector's edition). Applies to coins with a degree of preservation from 60 to 70|
|Specimen. Applies to coins with a degree of preservation from 60 to 70|
|MS (60 to 70)||Mint state - Uncirculated||The coin has no signs of circulation, it may at most have limited signs of contact with other coins due to the production process.|
|AU (50, 53, 55, 58)||Almost uncirculated||The coin has circulated very little and all the reliefs are intact.|
|XF (40, 45)||Extremely Fine||The coin has circulated and the major reliefs show signs of wear, while the coin is perfectly readable.|
|VF (20, 25, 30, 35)||Very Fine||The coin is worn and some parts are not legible|
|F, VG, G, Fair, Poor (1, 2, 5, 10, 15)||Fine, Very Good, Fair, Poor||The coin has heavily circulated and most of the reliefs have disappeared|