This guide is comprehensive and unsurpassed in presenting the most error coins containing:* doubled die errors* off center errors* striking errors* planchet errors,* repunched 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?