Undated 25C Washington Quarter Double Struck With Two Reverse Dies and Indent
Undated 50C Walking Liberty Half Struck on a Steel Cent Planchet
1913 5C Type Two Buffalo Nickel Struck on a Dime Planchet
1862 1C Indian Cent Obverse Die Cap
1995 10C Roosevelt Dime Struck With Cent Obverse Die
1904 $20 Liberty Double Eagle Struck 15% Off Center
Most Valuable Mint Error Value
Related links: U.S. Mint Errors
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The above list is the Top Ten sold values for United States Mint Erros and the number one error on this list is the most this mint error has ever sold for publically.

These values do not apply to raw errors in any other holder; these values only apply to errors graded and certified by PCGS (Professional Coin Grading Service) or NGC (Numismatic Guarantee Corporation).

You can't buy or sell United States Mint Erros for the prices listed in this website unless they're in the same grading company holder, same grade, variety and condition, even then there's no guarantee your mint error will sell for the same value.

If you want to learn the value of your mint errors, then you must know the error's type, grade, condition, and if it's authentic. You do this by taking your possible mint error to a reputable coin dealer or sending it to PCGS or NGC (fees do apply with these services). If you're not interested in sending it to a third party grading service then you should do some research and find a reputable coin dealer instead. I recommend a PCGS Coin Dealer since at least three of their piers have to vouch for them to be a PCGS Dealer.

If you can't find a PCGS Coin Dealer then look for local ANA members or coin clubs. In the mean time you can get an idea of your US mint error by visiting CoinHELP! website.
(2000)-P Sacagawea Dollar Muled With Statehood Washington Quarter Obverse
  1. 1999 1C Lincoln Cent Obverse Die Muled With a Roosevelt Dime Reverse on a Lincoln Cent Planchet MS66 Red PCGS. Apr. 29, 2006. Sold For: $138,000.00
2. (2000)-P Sacagawea Dollar -- Muled With Statehood Washington Quarter Obverse -- MS66 PCGS. Jan. 10, 2013. Sold For: $88,125.00
1999 Lincoln Cent Muled with Roosevelt Dime Reverse
3. 1904 $20 Liberty Double Eagle -- Struck 15% Off Center -- MS63 PCGS. Apr. 24, 2014. Sold For: $79,313.01
4. 1859 1C Indian Cent--Obverse Struck on 1857 Half Dime--MS63 PCGS. Jan. 3, 2007. Sold For: $71,875.00
1859 1C Indian Cent Obverse Struck on 1857 Half Dime
5. 1995 10C Roosevelt Dime--Struck With Cent Obverse Die--MS64 NGC. Jan. 7, 2010. Sold For: $57,500.00
6. 1862 1C Indian Cent--Obverse Die Cap--MS67 NGC. Aug 14, 2006 Sold For: $51,750.00
(6). 1993-D Lincoln Cent--Struck with Dime Reverse Die--MS65 Red PCGS. Jan. 7, 2010. Sold For: $51,750.00 (Tie With #6)
1993-D Lincoln Cent Struck with Dime Reverse Die
8. 1913 5C Type Two Buffalo Nickel--Struck on a Dime Planchet--MS66 NGC. Apr. 29, 2010. Sold For: $46,000.00
9. Undated 50C Walking Liberty Half -- Struck on a Steel Cent Planchet -- MS64 PCGS. Nov 1, 2013. Sold For: $44,062.50
10. Undated 25C Washington Quarter--Double Struck With Two Reverse Dies and Indent--MS66 NGC. Aug. 14, 2006. Sold For: $41,975.00
It's reported by mikebyers.com that the 1906 Indian Head Cent struck in gold is worth $500,000 and the same website has reported other values of $250,000 for other mint errors. However I could not confirm any final value for a documented sell of one of their listed mint errors, so I used Heritage Auction archives to compile this list.

If you have a source for a mint error that exceeds any on this list then please send me an email at help@coinauctionshelp.com