Thank you for purchasing the 15th edition of the US Error Coin Guide. Every year, this book is expanded with hundreds of new auction results. Error coin discoveries have expanded the volume of this book, making it the most comprehensive since its first publication in 2010. Questions: errorcoinexpert@aol.com

The contents of this book have been written with 60 years of experience in numismatics, education and research, authoring articles for coin magazines, contributions to ANA. It is similar to Yeoman's red or blue book, but for error coins.

The information in this guide will enable collectors to make the best decisions for buying, selling, and sending coins to grading services.

Included in this Guide
Error coin definitions with photos
Over 5,000 error listings of all types
Eight DDO error types
A glossary of error coin terms

Error Types
Die errors: Errors created from broken dies, cracked collars, hub errors, misaligned dies, doubled dies, and repunched mintmarks
Planchet Errors: Blanks used in the minting process with cracks, clips, defects, lamination, occluded gas, unplated, the wrong metal, and the wrong planchet
Striking errors: Errors created in the minting process, such as broadstrikes, die caps, and others.

Error Coin Updates
New error entries are added, and auction results are updated annually. Updates in this guide are noted by the current year placed at the end of error listing. We attend national auctions to obtain the most recent values for encapsulated error coins, providing collectors with credible and accurate information and giving collectors an advantage when buying and selling.

Error Coin Collecting
Error coin collecting has been increasing in popularity, as evidenced by the growing number of error coins submitted to grading services. In 1999, PCGS was the first coin grading service to recognize error coins other than the traditional error coins like the 1955 Lincoln cent and the 3-legged Buffalo nickel. These two coins have still had spots in Whitman albums while more recent errors have not been added.