how are coins graded

Coin Grading Scales and How are Coins Graded

Grading Scales Since rare coin quality varies widely, numismatists have adopted several coin-grading methods to assign more specific levels of quality to rare coins. The overwhelmingly popular method to use is the American Numismatic Association (ANA) grading scale. The…
coin machine doubling coin world

Coin World Sneak Peak on Unique Machine Doubling Examples

An unusual case of machine doubling What is called “machine doubling” is a fairly common occurrence on coins and is a manifestation of press instability, writes Mike Diamond in his “Collectors’ Clearinghouse” column. The featured coin this week displays…