Curved Clip Error Coin




Curved Clip Mint Error Coin: 1978-D Penny

A curved clip mint error coin is a type of numismatic error that occurs during the production of coins. In other words, a 1978-D penny curved clip mint error refers to a portion of the coin’s circumference being absent. This is due to a misalignment during the blanking or cutting process.

1978 penny error

Furthermore, the blanking process involves cutting round metal discs, called planchets from large sheets of metal. Occasionally, the cutting machine may malfunction or experience misalignment. This results in irregularly shaped planchets.  Moreover, the irregularly shaped planchet used to strike a coin, creates a clipped mint error.




Note the Crescent-shaped Indention

Essentially, a curved clip mint error is named because a missing portion of the planchet creates a curved or crescent-shaped indentation. The location and size of the curved clip can vary, but typically affects a small segment of the coin’s circumference.

1978 penny error list
Curved Clip Mint Error Coin Value

The value of a curved clip error coin may vary.  Moreover, it depends on several factors, such as the severity of the clip, the rarity of the coin, and the demand among collectors.  Additionally, the more pronounced and larger the curved clip, the more desirable the error coin becomes.




To determine the specific worth of a curved clip mint error coin, have it authenticated and appraised by a professional coin grading service or a reputable numismatist.  For a small fee, they’ll assess the coin’s condition, rarity, and market demand to provide a valuation estimate.

curved clip error coin lincoln penny error
Note the Blakesley Effect

The Blakesley Effect refers to a specific type of error that can occur during the minting process of coins. It’s named after a man named Blakesley, who first described this phenomenon.

mint error coins to look for

The Blakesley Effect specifically refers to the raised rim formed along the clipped edge of a coin.  A coin struck with insufficient force or misalignment, displaces the metal pushing it upward.  This causes the formation of a ridge or rim along the clipped area and a flattened area opposite the clip.




Coin collectors find these errors intriguing due to their unique appearance and the circumstances during minting process.  List your own mint error discoveries on Ebay by observing how others have listed theirs.

Curved Clip Error Coin 1978 penny errors

If you’ve found a clipped error coin you think is valuable, then consult with experts in the field to get an accurate assessment of its worth. Online coin groups such as coinauctionshelp.com are extremely valuable resources to be aware of.

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2015 Saratoga New York Quarter Errors, Varieties, and Values

2015 Saratoga New York Quarter Errors, Varieties, and Values

Have you found a 2015 Saratoga New York national park doubled die variety quarter? As shown in the images, the “doubling shows inside the lower right opening in the handle of General Burgoyne’s sword.” – John Wexler.  Saratoga New York quarter errors have asking prices of five dollars and up in raw condition on Ebay.

saratoga new york quarter 2015
New York National Park Quarter Design

“At Saratoga in the autumn of 1777, American forces met, defeated and forced a major British army to surrender.  Moreover, this crucial American victory renewed patriots’ hopes for independence, secured essential foreign recognition and support, and forever changed the face of the world.”

“Furthermore, the battlefield, a monument to the fallen and the restored country house of American General Philip Schuyler make up the three sites of Saratoga National Historical Park.  Additionally, it was established as a national site in 1938.” – usmint.gov

2015 saratoga quarter error value

New York Quarter Values

2015 Saratoga New York national park quarters have asking prices of two dollars and up in raw condition.  Observe the sold listings showing what 2015 New York quarter errors recently sold for on Ebay.  Furthermore, graded quarters are valued much higher.

Saratoga Quarter Values

For instance, a 2015 P Saratoga New York quarter graded MS68, sold for $140.00.  Furthermore,  a 2015 D Saratoga New York quarter graded MS67+, sold for $300.00.  Additionally, a 2015 S Saratoga New York national park quarter graded MS68, sold for $695.00.

However, those quarters are valuable as a result of high mint state grades. Quarter errors and varieties are worth money because of the uniqueness of each specimen.  Additionally, the grade has an influence on value.

2015 saratoga quarter error
2015 National Park Quarter Doubled Die Varieties

Furthermore, 2015 Saratoga New York quarters display different doubled die varieties. Visit doubleddie.com for more images to compare the differing areas that the doubling displays on 2015 New York national park quarters.

Additionally, the best chance of finding a rare error or variety in mint state condition is to search mint sets, or uncirculated original bank wrapped quarter rolls.

Furthermore, observe a rare 2020 W national park quarterThis website is a partnered associate and contains affiliate links, which enable me to earn commissions from various partners. Full disclosure is available here.  Partners include Ebay, Amazon, Google Adsense, and others.

2008 Alaska Quarter Errors, Varieties, & Values

2008 P Alaska Quarter Errors, Varieties, & Values

 2008 Alaska Quarter errors and varieties exist!  Moreover, I’ve found extra bear claws on 2008 state quarters.  Furthermore, unlike other coins I found exhibiting the extra claw, this quarter displays extra thick letters with die breaks on the devices of both sides of the coin. 

Alaska quarter error

Moreover, searching uncirculated original wrapped bank rolls of 2008 Alaska quarters is the best chance of finding a rare error or variety specimen in mint state grades.   Additionally, examining 2008 mint sets ensures a mint state grade specimen.

2008 Extra Bear Claw Alaska Quarter Variety

A 2008 P Alaska quarter with an extra claw and die chips found in the word “Land” once sold for $35 at Great Collections.   Most importantly, consider how some people flip houses while others learn how to flip coins. 

Alaska quarter

Furthermore, they can easily turn a twenty five cent quarter into several dollars or more.  The “extra claw” nickname caused this coin to become famous, so to speak.

A die break shows as the form of the extra claw, noted by the arrows in the image above.  Arrows note the die chips in L, A, and N of LAND seen in the image below.  Moreover,  die breaks display on the I, N, and W of In God We Trust, as shown in the image below.

2008 alaska quarter
Alaska State Quarter Variety Values

2008 extra bear claw quarters are listed on Ebay!  Furthermore, recent sold prices suggests current market value between $5 and $15 for this error coin.  However, that’s in raw or ungraded condition.  The more unique the die markings on a quarter, the more appealing coin collectors find it. 

The better the condition of the coin, the higher the value.  This coin is in circulated condition, as is evident by all the dings and scratches on the coin shown in the below images.  However, the “extra bear claw” variety along with other die breaks increases its value.

alaska state quarter error
Alaska Quarter Values

Above all, population of graded coins, and not just grade or the mintage itself determines the value of a coin.   Furthermore, there are a few Alaska quarter doubled die varieties listed on doubleddie.com.  The more flawless the coin, the higher the value.

2008 p alaska quarter error value

For example, a 2008-D Alaska Quarter graded MS69, sold at auction for $2,350.00.  Furthermore, a 2008-P Alaska Quarter graded MS68, sold at auction for $199.00.  Additionally, a 2008-S Silver quarter graded  PR70, sold for $127.00.

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The Great Land Alaska coin error
Coin Study & Examinations

If you haven’t read any books by famed numismatist John Wexler yet, listings are available via Amazon.  Additionally, Strike it Rich with Pocket Change by Ken Potter is recommended along with The CherryPickers’ Guide.  Finally, check out a 2008 Arizona Quarter with The Extra Cactus Leaf!

This website is a partnered associate and contains affiliate links, which enable me to earn commissions from various partners. Full disclosure is available here. Partners include Ebay, Amazon, Google Adsense, and others.