2009-D District of Columbia: Part of the final year of the 50 State Quarters Program, with rare variations and errors.
2006-P Nevada: Collectible due to die breaks and errors.
2005-P West Virginia: Varieties with die breaks and errors.
2005-P Minnesota: Some quarters have a double die error.
2005-P Kansas: Error coins with noticeable issues.
2004-D Iowa Extra Leaf: Similar to Wisconsin, some Iowa quarters have an extra leaf on the corn.
2004-D Wisconsin Extra Leaf: Some quarters have an extra leaf on the ear of corn.
1999-P Delaware: The first coin in the 50 State Quarters Program.