Question: what year error coins are worth the most?
Answer: 2005 U.S. Filled Die Kansas State Quarter. ...  2007 U.S. Missing Edge Lettering Presidential Dollar. ...  2012 U.K. Olympic Swimming 50p. ...  2000 Australian $1/10 Mule. ...  1999 U.S. Wide "AM" Reverse Lincoln Penny. ...  2009 Lincoln Presidency Cent. ...  1995 U.S. Doubled Die Obverse Penny. ...  2002 Italian 2 Cent. Sold at auction: €6,600 ($7,564)