5This guide is comprehensive and unsurpassed in presenting the most error coins containing: -doubled die errors-off center errors-striking errors-planchet errors, -re-punched mint marks-variationsAll coin errors listed have been certified by the most well-known encapsulation services and sold by major auction houses. Modern-day coin error listings with photographs and values at auction are included. Do you have one of the modern-day valuable coin errors that may still be located in circulation worth thousands of dollars?