Highlights information available for collectors of error coins including a magazine, photos of error coins, new discoveries, organizations for error coin hobbyists, educational journal articles, and pricing information.
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The Combined Organizations of Numismatic Error Collectors of America
Devoted to the education of error and variety coin collectors with magazine publications, club services, and online store.
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CONECA Error-Variety Coin Forum
Discussions and analyses of all types of non-standard coinage, mint errors, and die variety.
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Error Trends Coin Magazine
Provides information on the publication with subscription rates, authentication services, and glossary.
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Minterrornews.com
Collectors' resource providing updates and new information about the latest in mint errors with a price guide, glossary, numismatic rarities, test pieces, and related links.
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Rich Schemmer
Features new error coins of all denominations of interest to collectors and enthusiasts. With a glossary and numismatic links.
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Rotated Die Coin Census
Presents surveys on rare and modern coins with brief descriptions, photo albums, and new discoveries.
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Striking Out: The Fascination with Mint Error Coins
Presents the number of ways coin minting goes wrong. With sample coin images and erroneous minting animations.