Coin collection is not just about having as many coins as possible. More important than the number of coins is the quality of those coins. This quality is measured by the coins grade and the grade is measured using a scale from zero to seventy (seventy being the highest point grade). Doctor William Shelby introduced this point scale in his work Penny Whimsy.
Here are the classifications of coins according to grade.
1. Mint State Coins
This is equivalent to a value of 60 to 70 in the Shelbys grade scale. This means that the coin has no blemishes whatsoever. Most of the coins in this category are uncirculated, shiny, new coins, with absolutely no signs of wear.
2. Almost Uncirculated Coins
The Almost Uncirculated coins have a point grade of 50, 55, or 58.
It is very important to note that in these coins, coin collectors must know the locations of the high points in a particular coin. By checking the difference of the light reflected in the high points to the other parts of the coin, an Almost Uncirculated coin is separated from the Mint State coins.
3. Fine Coins
These can further be classified as Extremely Fine (40,...