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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2023 Bessie Coleman Quarter Errors, Varieties, & Valules




2023 Bessie Coleman Quarter Errors, Varieties, & Values

2023 Bessie Coleman Quarter Double Die Varieties and Error coins exist. For instance, have you found any like these?  Look for doubling along Bessie’s upper lip! It’s a lot like the doubling found on the nose of the Mt. Rushmore quarter.

bessie coleman quarter worth money

Furthermore, the doubled initials on Bessie Coleman quarters offer a collection a number of collectible variations. It’s a striking error coin!




Additionally, misprinted quarter mint errors like this are rare and valuable collectible coins.   For instance, observe the recent Ebay sold listings here to get an idea of current market value.

2023 quarter Bessie Coleman rare
American Women Quarters Series

Furthermore, the Bessie Coleman quarter is a part of the U.S. American Women Quarters program series issued by the United States Mint in 2021. Moreover, the value of the Bessie Coleman quarter depends on various factors such as the coin’s rarity, condition, and certification.




American Women quarters have differing values, depending whether it’s circulated or uncirculated.  Additionally, mint state and proof coins are highly desirable among collectors, so they fetch higher values over time.

bessie coleman quarter error
Bessie Coleman Quarter Values

For instance, a 2023-D 25C Bessie Coleman quarter graded MS67, sold for $60Furthermore, a 2023-S Bessie Coleman First Day of Issue attribution and graded MS66 sold for $350.00Additionally, a 2023-P 25C Bessie Coleman quarter graded MS66, sold for $46.00.




2023 Quarter Errors & Varieties

Additionally, any errors or varieties known to exist can also increase the value of a Bessie Coleman quarter.  Moreover, collectors should use grading guides and certification services when acquiring Bessie Coleman collectible quarters worth money.

Coin appraisal applications are available, but a coin appraiser will assist to determine their condition and authenticity, and to ensure a fair price for collectible coins.

It won’t harm to get more than one opinion.  However, if you join a coin group or community forum, make sure to take photos of the front and back of the coin, as well as a clear photo of the anomaly.

Finally, look for Feeder Finger Errors on 2023 Bessie Coleman Quarters because they’re also worth money.  Turning a quarter into a dollar may not seem like much, however,  it still adds up. Happy hunting!

I love how we congratulate and celebrate one another’s existence. The American Women Quarters program is an excellent series!  Check out a Maya Angelou quarter next!

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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.

2018 Wisconsin Quarter Apostle Islands




2018 Wisconsin Apostle Islands National Park Quarter Errors, Varieties, & Values

2018 Wisconsin Apostle Islands quarter errors and varieties exist!  For instance, observe this Wisconsin quarter displaying interior die breaks.  Additionally, Wisconsin quarter value depends on various factors, including the condition of the coin. The better a coin’s condition the more it’s worth.  

2018 apostle islands quarter error
Arrows note an interior die break on a 2018 Wisconsin National Park Quarter

Furthermore, note the arrows in the image above pointing at an interior die break.  The anomaly makes the cliff appear to display a “falling rocks” error.  Moreover, anomalies exist not only in on the cliff areas on the bluff, but also on the kayaker.  




2018 Wisconsin Quarter Values

Values of coins fluctuate in the market, especially when any demand is higher than the supply.  Depending on how pronounced an error or anomaly is, a 2018 Wisconsin national park quarter error like this may sell for five dollars and up in raw condition on Ebay.  

However, graded and authenticated 2018 Wisconsin quarters with a high mint state grade increase in value.  For instance, a 2018-P 25C Apostle Islands NP Quarter sold at auction for over $2000.00.  

2018 quarter error value
Arrows note die chips on an Apostle Islands quarter

Meanwhile, researching the current listings on market places like Ebay helps determine going market prices of quarters in raw or ungraded condition.  A USB Coin Microscope is necessary to find varieties and errors.




Selling Error Coins Online

First, consider whether or not a coin is worth the cost of having sent off for grading.  For instance, sometimes the return of investment isn’t worth the original cost of investment, and coins can be auctioned or sold just as easily in protective coin sleeves otherwise known as 2X2 coin flips.

wisconsin 2018 quarter error
Arrows note an interior die break on a 2018 Apostle Islands National Park Quarter

Furthermore, people sell coins online all the time just by using clear images and accurate descriptions.  Additionally, the more honest and reasonable a seller is, the more trust they earn, and the higher their customer ratings.

Apostle Islands National Park Quarter Design

Next, observe the reverse of a 2018 Wisconsin Apostle Islands National Park quarter.  It depicts the sea caves at Devil’s Island and a kayaker paddling, with the lighthouse in the background. 

Apostle Islands quarter error
Falling Rocks on Devil's Island 2018 Quarter

Wisconsin’s Apostle Islands National Lakeshore was established in 1970.”  Note the arrows indicating a large interior die break appearing as though rocks are falling off the cliff.  Falling Rocks signs around cliffs are important to heed.  Landslides are no joke either.

Furthermore, the park includes 21 islands in Lake Superior and a 12-mile-long strip of mainland shoreline.  Additionally, the park features sand beaches and coves; spectacular sea caves; forests; a diverse population of birds, mammals, amphibians, and fish; and a number of lighthouses and lighthouse complexes.” – USMINT

rolling stone quarter error
Arrow note a falling rock on a Wisconsin National Park Quarter

Observe a falling stone appear to be rolling off the cliff on a national park quarter, as noted with arrows in the image above.  Additional arrows note die breaks that appears as extra rocks or stones in the image below.

apostle islands wisconsin quarter error

Furthermore, interior die breaks take place in various areas on 2018 Wisconsin quarters, as noted by arrows in the image above and again in the photo below. 

2018 wisconsin quarter error




2018 quarter errors

Furthermore, observe the beginning of a die break noted with arrows in the image above.  The anomaly isn’t as prominent as others.  However, it’s still worth noting.   

Moreover, the best chance of obtaining an apostle islands quarter in a high mint state grade search mint sets or to purchase and search through original wrapped bank rolls.

2018 Wisconsin Apostle Island Quarter Error Coin Examination

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Gifts For Coin Collectors

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.

die crack coin error
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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!

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2020 Quarter Errors: U.S. Virgin Islands

2020 Salt River Bay Quarter Error: Die Breaks on the Mangrove Tree & Feeder Finger Errors

2020 quarter errors and varieties exist!  For instance, a 2020 Salt River Bay U.S. Virgin Islands quarter displays die breaks as extra leaves on the mangrove trees. Look for anomalies on 2020 Salt River Bay quarters!

2020 virgin island quarter error

Furthermore, note the feeder finger errors prominent on this quarter.  These error coins sell for $5 and up in raw condition on Ebay.  Moreover, people searching for 2020 w quarters with the privy mark should be looking for doubled die varieties and errors on quarters produced at every mint.  

salt river bay quarter error
2020 salt river bay quarter error value

For instance, this 2020 D Salt River Bay quarter displays a die chip as an extra leaf on the right side of the mangrove tree.  Furthermore, the arrows note the die breaks in the images.

2020 salt river bay quarter errors
salt river bay quarter errors

2020 Salt River Bay quarter errors sell for five dollars and up on Ebay.  The best chance of finding a rare and valuable 2020 U.S. Virgin Islands quarter is by searching through uncirculated original wrapped bank rolls.  Additionally, examining 2020 mint sets ensures a mint state grade specimen.

Feeding Finger Errors

Furthermore, feeder finger errors or die scrapes display on many coins.  Various errors exist on the Denver, Philadelphia, Sacramento, and West Point quarters. Moreover, feeder finger errors sell for five dollars and up in raw condition on Ebay.

Furthermore, aside from finger feeder errors, these quarters displays die breaks on both the left and right sides of the mangrove trees.  Moreover, feeder finger errors appear on both the obverse and reverse of 2020 Salt River Bay quarters.  

Additionally,  2020 U.S. Virgin Islands Salt River Bay obverse and reverse doubled die varieties exist.  In other words, images to compare 2020 quarters to are listed via varietyvista.com and doubleddie.com

Furthermore, check out a 2020 W Salt River Bay Quarter with a struck-through error!   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.

2020 American Samoa Quarter Errors, Varieties, & Values

2020 American Samoa Quarter Errors, Varieties, & Values

2020 American Samoa quarter errors and varieties exist!  It was a year rife with mistakes slipping out of the mint.  The United States Mint had to ramp up production of national park quarters because of the coin shortage.  

2020 bat quarter error
Arrows Note a Struck-through Bat Quarter Error

Moreover, pressure to produce a greater quantity impacted quality, meaning more error coins escaped the mint.  For instance, as shown, struck-through error quarters are most prominent on the American Samoa bat quarters.

2020 American Samoa Quarter Values

Furthermore, 2020 national park quarters are very valuable!  For instance, a 2020-D quarter graded MS67, sold at auction for $621.00.  Additionally, a 2020 S American Samoa quarter graded MS67, sold for $295.00.  These quarter dollar coins are valuable because of their high mint state grades.

2020 american samoa quarter error
Arrows note a form of doubling displayed in the letters "U" & "M" of UNUM

Moreover, a 2020 D American Samoa NP quarter graded MS68, sold for $330.00.  In other words, coins don’t have to have errors to be valuable, if they’re in pristine condition.  For instance, a 2020 P American Samoa NP quarter graded MS68, sold at auction for $400.00.

2020 American Samoa Quarter Errors & Varieties

Furthermore, did you note in the image above how doubling displays in several letters of “America” on this 2020 American Samoa national park quarter?  Additionally, did you know that machine doubling exists on a coin that’s also a genuine doubled die?   While not likely to sell at a coin shop, unique national park quarters with machine doubling do sell on Ebay

2020 quarter error list

Additionally, doubled die reverse variety quarters are rare and therefore extremely valuable.   The best chance of finding mint state grade doubled die reverse variety quarters is by searching through original wrapped bank rolls sold via Ebay.

How to Flip Coins like People Flip Houses

Furthermore, inexperienced rare coin hunters are making new discoveries just by doing their diligent research of learning what to look for.  For instance, once you know what you’ve found, take good pictures to upload and be honest in the description.  Then practice patience once you’ve created and launched your own Ebay listing.

bat quarter value

As a result, you should find yourself flipping coins online in the same way people flip houses.  Additionally, searching 2020 mint sets ensures a mint state grade proof specimen.

2020 National Park of American Samoa Quarter Design

The 2020 bat quarters feature a Samoan fruit bat mother hanging in a tree with her pup.  Unfortunately, the 2020 bat quarter dollar coin also gained notoriety over its design in 2020. 

2020 national park quarter errors
American Samoa Quarter Dollar

Excitedly, these quarters display feeder finger errors, struck-through errors (blind bat quarter,) off-center errors and more! However, also look for the West Point Mint special edition privy mark on 2020 quarters.

2020 w quarters also display errors and varieties.  Most importantly, get a  coin microscope!  It’s an essential tool required for successfully finding rare variety coins.

american samoa quarter error
An arrow notes a die chip on the bat's ear of a 2020 American Samoa Quarter
Where to Find Flawless Coins

Furthermore, unless you know where to get flawless coins, or come across one in pocket change, the 2020-w American Samoa quarters in high mint state grades are only available for purchase through private coin dealers.

Moreover,  major auction agencies will only consign a coin that’s graded and certified by a reputable grading company, such as ANACS.

American Samoa National Park History

The National Park of American Samoa is located southwest of Hawaii.  Furthermore, the site includes sections of three islands.  It’s one of the most remote in the U.S. National Park System.  Moreover, these islands from the mountaintops to the coast, are all tropical rain-forest.

The park’s area combined is 13,500 acres, with 4,000 acres underwater.”  Plan a visit to this not so secret paradiseTake the appropriate precautions as you make reservations and set yourself up to experience the adventure of a lifetime.

national park quarters

However, even if you can’t go on an extravagant national park vacation, you can still keep an eye out for a bat quarter error in pocket change.  Most importantly, keep watch for all new discoveries of National Park Quarter Doubled Die Reverse Varieties.   Happy hunting!

Coin Hunting Resources

Additionally, bookmark doubleddie.com and the master listings on varietyvista.com for doubled die images to use as references.  Invest in the tools and educational material to study.  For instance, “The Cherry-Picker’s Guide” is recommended by numerous coin shops.

2020 quarter error list
Arrow points to die chip on a bat wing
The Great American Coin Hunt & West Point Quarters

Finally, only two million of the West Point quarters were minted of each 2019 & 2020 special edition designs.  In other words, if you notice a W mint mark on the front of any quarters, then keep them.  They’re very rare and valuable! 

The Great American Coin Hunt is a positive historical event that took place during the years of 2019 and 2020.  Check out what a rare Special Edition 75th Privy Mark West Point Mint 2020 W Weir Farm Quarter with a die crack looks like next.

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2020 Connecticut Quarter Weir Farm V75 W Mint Mark

2020 W Weir Farm Connecticut National Park For Art Collectible Quarter Coin

2020 W Weir Farm Connecticut National Park special edition privy mark quarters are worth far more than face value.  Furthermore, 2020 Connecticut quarter errors and varieties exist!  Hold on to any W quarters you can find.  Read on to learn why.

w quarter value
2020 V75 W Connecticut National Park Quarter River between the R's Die Crack

Aside from a special series West Point Minted 2020 W Connecticut quarter,  a die crack displays between the “R” in “FOR” and “R” in “ART” on this coin.  Look at the image above and observe the die crack encircled in blue.  Are you collecting rare cash and coins like the w national park quarters too?

Common Circulating Coins

Most coins in circulation are struck at the Denver and Philadelphia facilities.  The standard D and P mint marks are evident on the majority of coins in every day pocket change. However, West Point Mint quarters are rare low mintage special edition collectibles!

weir farm quarter error
Die Gouge

First, both business strike facilities make and ship coins to Federal Reserve branches.  Then, they’re distributed to local banks and other financial institutions.” – Coin News.   In other words, Sacramento and West Point Mint facilities only strike coins for collection registries.

Earn Money Coin Roll Hunting

Meanwhile, coin enthusiasts earn a profit spending time coin roll hunting.  Furthermore, collectors appreciate their efforts by purchasing delightful specimens for a premium.

Moreover, it’s even possible to flip a coin like people flip houses.  Additionally, the West Point Mint quarters initiative attracted new collectors to coin roll hunting and collecting.

2019 & 2020 W Quarter Collectible Coins

2019 and 2020 W quarters are rare U.S. coins!  As stated by the United States Mint, “No ‘W’ quarters were mixed into bulk bags or sold to coin dealers under the Mint’s bulk purchase program.”

2020 W V75 National Park quarter Mint Set

In other words, everyone got the opportunity to find and be the first to obtain these rare W quarter varieties.  Furthermore, the W V75 Privy Mark Variety represents the end of WWII, and only 2020 national park quarters display them.

The Great American Coin Hunt

“The goal of the Great American Coin Hunt Program was to create excitement among all coin collectors as well as attract new generations to the coin hobby.

2020 connecticut quarter errors
Struck-through grease

Furthermore, this act consisted of rare and valuable collectible coins distributed into circulation. The program enabled anyone and everyone the opportunity to spot them in pocket change.”  All you have to do is be vigilant and look for them!

The catch is knowing what to search for or “cherry pick,” to find the most valuable coins.  It’s been a few years since this real life Willy Wonka Stunt” was announced.  However, not everyone became aware of the full program.  You could be holding a golden ticket and not even know it!

 2020-W 25c V75 Privy Quarter Values

A good way to keep up with the increasing value of the “W” minted quarters is by bookmarking the PCGS Price Guide.  For instance, an authenticated 2020-W Weir Farm NP V75 Connecticut quarter with a grade of MS67, sold for $1395.00.

2020 w weir farm connecticut quarter dollar
Die Gouge

Furthermore, an “Early Find” strike sold for a $1000.00.  Additionally, a 2020 W NP V75 Connecticut quarter designated as “First Discovery” and graded MS67, sold for $851.00. 

Checking for Rare Coins in Pocket Change

Coin collectors find rare valuable coins by taking on the task known as coin roll hunting.  Additionally, this activity consists of getting rolls of coins from the bank and searching through them.  Educational material such as The Cherrypicker’s Guide To Rare Die Varieties and Strike It Rich With Pocket Change is available online, and in nearly every coin shop.

Coin Roll Hunting is for Treasure Seekers
This task has helped people earn hundreds of thousands of dollars or more in a year!  However, it’s very time consuming.  Coin collecting is a hobby, whilst coin roll hunting is the treasure hunt.  “Banks are generally happy to order boxes of coins on request.”  – Wall Street Journal.
West Point Quarters Mint Sets

Moreover, the best chance of finding rare 2020 W National Park quarter errors and varieties is by hunting through uncirculated bank rolls. Furthermore, coin roll hunters profit by gathering and putting together rare West Point quarter mint sets for rare coin collectors.

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.