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US Coins Apr 24, 2014, 9 AMCanceled dies and cancellation dies are entirely different
Canceled dies and cancellation dies are entirely different: Here's how these error coins differ from each other. -
World Coins Apr 4, 2014, 9 AMCanadian Millennium series yields counterclash
Canada has produced three Type II counterclashes, all of which are found in the first year of the Millennium 25-cent coin series of 1999 to 2000. -
US Coins Mar 28, 2014, 6 AMDamaged, unstable die leaves extra letters
A dedicated roll-searcher recently posted photos of a 1998 Lincoln cent showing a second set of letters on the reverse face. -
US Coins Mar 13, 2014, 8 PMEnigmatic die defect may be a recurring die subsidence error
Collectors' Clearinghouse column by Mike Diamond: 1973-D cents are prone to peculiar, enigmatic die defects on the reverse that are difficult to explain. -
US Coins Mar 9, 2014, 8 PMIncomplete punches look very different before, after strike
Collectors' Clearinghouse column by Mike Diamond -
US Coins Aug 12, 2011, 8 PMEnlarged sample of cents solves riddle of extra letters
Enlarged sample of cents solves riddle of extra letters on rim