NGC-certified US Mint Error Coins Showcased in Heritage Sale

A selection of interesting coins certified by Numismatic Guaranty Corporation® (NGC®) are featured in an upcoming Heritage Auctions sale dedicated to US Mint Errors. Over 70 NGC-certified mint error coins from the 19th, 20th and 21st centuries are being offered. Bidding is underway online for the sale, being held April 15, 2021.

1999-P New Jersey State Quarter graded NGC MS 65 Click images to enlarge.

The top NGC-certified lot is a 1999-P New Jersey State Quarter graded NGC MS 65 (lot 91146) that was struck on a foreign planchet. In addition to being the wrong composition, the planchet used was much too small, cutting off much of the text near the edges. More than a week before the auction, bidding had already passed $6,000.

2000-P $1 Sacagawea Dollar Struck 50% Off-Center graded NGC MS 66 Click images to enlarge.

A second highlight is a 2000-P $1 Sacagawea Dollar Struck 50% Off Center graded NGC MS 66 (lot 91199). The off-center strike resulted in the absence of the design elements above Sacagawea’s forehead on the obverse and below the eagle’s body on the reverse. More than a week before the auction, bidding had already passed $2,000.

Other NGC-certified mint errors in the sale include:

• a 1965 Quarter graded NGC Mint Error AU 53 that was struck with a Transitional Error on a 90% silver planchet (lot 91122)
• a 1943-S Cent graded NGC Mint Error AU 53 that was struck on a silver dime planchet (lot 91013)
• a 1906 5C Liberty Nickel graded NGC Mint Error MS 61 BN that was struck on a cent planchet (lot 91076)
• a 1973-S Washington Quarter graded NGC Mint Error PF 65 RB that was double struck on cent planchet (lot 91136)
• a 1998 Cent graded NGC Mint Error MS 67 that was overstruck on 1998-P dime, a double denomination error (lot 91052)
• a 1968-S Cent graded NGC Mint Error PF 64 that was struck on a dime planchet (lot 91072)
• a (1964) Kennedy Half Dollar graded NGC Mint Error MS 64 that was struck on a clad Type 1 quarter planchet (lot 91160)
• a 2001 Cent graded NGC Mint Error MS 67 struck on a 2001-P dime, a double denomination error (lot 91070)

Mint errors are coins with mistakes that, despite advanced minting technology and extensive quality control, still managed to make their way into public hands — much to the delight of numismatists. NGC has explored the wide variety of mint errors in a four-part series. Follow the links below to learn more.

Related Links:

• Learn Grading: What is a Mint Error? — Part 1
• Learn Grading: What is a Mint Error? — Part 2
• Learn Grading: What is a Mint Error? — Part 3
• Learn Grading: What is a Mint Error? — Part 4