Official Coin Grading Standards
The accurate grading of coins is an important part of the numismatic field. To many, grading is considered an art that requires years of experience to master. Since 1977, the ANA has published its official grading standards, with Abe Kosoff compiling the first edition of the book, Q. David Bowers writing the introduction, and Kenneth Bressett providing the grading descriptions throughout the publication. The following grades and descriptions are the American Numismatic Association's official grading terminology and standards for mint-state and circulated coins.