Top 10 Error State Quarters Priced Over $10,000 That You Could Still Find

State quarters with minting errors have become one of the most fascinating areas of coin collecting. These coins, originally designed to commemorate each state, sometimes feature unique imperfections that significantly increase their value.

Many of these rare state quarters treasures are still in circulation, making it possible for collectors and enthusiasts to stumble upon them in everyday transactions. Here are ten error state quarters valued at over $10,000.

Delaware Quarter (Spitting Horse)

This quarter features a die crack running from the horse’s mouth, creating the appearance of a “spitting” horse. It’s a rare minting flaw that has made this coin a collector’s dream.

Wisconsin Quarter (Extra Leaf)

The extra leaf error, appearing as either a high or low leaf on the corn stalk, is one of the most well-known state quarter errors. This coin’s value lies in its distinctiveness and scarcity.

Minnesota Quarter (Extra Tree)

The extra tree state quarter error occurs due to die doubling, making additional trees appear on the coin’s design. This flaw has led to significant interest among collectors.

Kansas Quarter (In God We Rust)

This humorous error results from a grease-filled die that makes the “T” in “Trust” almost disappear, leaving “In God We Rust.” Its uniqueness adds to its desirability.

Connecticut Quarter (Extra Branch)

The extra branch error on this state quarter is caused by die doubling in the depiction of the Charter Oak, a feature that greatly enhances its value.

Georgia Quarter (Weak Edge Lettering)

This coin exhibits weak or missing edge lettering, a rare and valuable flaw. Collectors prize this quarter for its rarity and aesthetic anomaly.

Nevada Quarter (Double Die)

This error features a doubling of certain design elements, such as lettering or images, making it an extraordinary find for numismatists.

Oregon Quarter (Trail Error)

The trail error appears as faint, additional lines in the design of the quarter, giving the impression of a trail. This subtle mistake is highly sought after.

Arizona Quarter (Extra Cactus)

This error involves die doubling, creating what appears to be an extra cactus on the coin’s reverse design, significantly increasing its value.

South Carolina Quarter (Missing Letters)

This coin features missing or weakly struck letters due to minting issues, a rare defect that intrigues collectors and adds to its worth.

Coin	Error Type	Year Minted	Estimated Value ($)
Delaware Quarter	Spitting Horse	1999	10,000+
Wisconsin Quarter	Extra Leaf	2004	12,000+
Minnesota Quarter	Extra Tree	2005	15,000+
Kansas Quarter	In God We Rust	2005	11,000+
Connecticut Quarter	Extra Branch	1999	10,500+
Nevada Quarter	Double Die	2006	13,000+
Arizona Quarter	Extra Cactus	2008	14,000+

These error state quarters serve as a reminder of the fascinating quirks in coin production. While these mistakes may seem minor, their rarity and the story they tell about the minting process make them valuable assets for any collection. It’s worth checking your spare change for one of these elusive and highly prized coins.

What makes an error state quarter valuable?

The value of an error state quarter depends on the rarity and uniqueness of the error, as well as the demand among collectors.

Where can I find error state quarters?

Error state quarters can occasionally be found in circulation, at coin shops, or through online marketplaces specializing in rare coins.

How can I verify the authenticity of an error quarter?

You can have your coin authenticated by a professional grading service, such as the Professional Coin Grading Service (PCGS) or the Numismatic Guaranty Corporation (NGC).