Category
Grading Basics
Understanding the Sheldon Coin Grading Scale
Where the 1-to-70 grading scale came from, how the letter-and-number abbreviations work, and what each broad grade band generally looks like on a coin.
Reading a Coin: Mint Marks, Dates, and Designers
What the small letters and initials on a coin actually mean — mint marks that identify where it was struck, and designer initials that credit the artist behind the design.