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Learn About Error Coins and Varieties on the Internet


Multi-Media Summary

BJ Neff is a devoted researcher of mint mistakes and varieties. * Why was created and what information it offers * Numismatic principles of the site including BJ Neff, Mike Diamond, Jeff Ylitalo and Jason Cuvelier * Categories on the website that include die subtypes and varieties, die errors, planchet and striking errors, mint modifications, and more * Examples of error coins and their values Speaker: B.J. Neff.
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