2004-D Wisconsin Extra Leaf Low: This quarter is known for its distinctive error - the extra leaf low on the ear of corn - and can be worth up to $300.
1999-S Connecticut Broadstruck Quarter: An error coin, the 1999-S Connecticut quarter can fetch prices of around $300 or more.
2005-P Minnesota Extra Tree: This quarter features an extra tree on the reverse side and can be valued at approximately $200.
2005-P Oregon Die Break: With a die break error, the 2005-P Oregon quarter can be worth up to $200.
2008 Arizona Extra Cactus Leaf: An error coin with an extra cactus leaf, this quarter can reach prices of around $100.
2007-P Wyoming Double Die Reverse: Known for its double die reverse error, this Wyoming quarter is valued at approximately $100.
1995 Double Die Obverse: Featuring a double die obverse error, the 1995 quarter can be worth up to $50.
1983-P Washington Quarter: With an error that features extra leaves on the reverse side, this quarter can fetch prices of around $50.
1984-P Doubled Ear: This quarter has an error with a doubled ear on Washington's profile and can be valued at approximately $40.
1997-P Washington Quarter: Known for a die crack error, the 1997-P quarter can be worth up to $30.