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.

2009 Bicentennial Presidency Cent Doubled Die Variety

2009 Lincoln Presidency Bicentennial Cent Doubled Die Variety Coin

2009 Bicentennial Presidency Lincoln cent errors and varieties exist!  For example, observe this 2009 Presidency penny doubled die variety example.  I purchased uncirculated original mint wrapped rolls from Ebay.

double die lincoln penny 2009

That’s how I found this neat specimen.  For instance, observe the extra thickness displaying on the two and first zero of the date.  I noted the doubling with arrows in the image above.

Additionally,  as John Wexler stated, “There are numerous target area for doubled dies on the 2009 bicentennial presidency cent design.”  Moreover, 2009 presidency penny errors and varieties are collectible coins worth money.  

double die cent

Variety and error coins like this don’t necessarily need to have a high mint state grade to be valuable.  However, those in the highest mint state grades are the rarest and therefore the most valuable.

2009 White House Penny Varieties

Furthermore, observe areas around the bottom of Lincoln’s ear, the ERTY of LIBERTY, and the date.  For instance, note the thickness of the top of the letters “RTY” of Liberty compared to a normal 2009-P Presidency penny.

rare 2009 penny
Arrows note a die crack spread across Lincoln's head on a 2009 Penny

“The target area for doubled dies on the 2009 Presidency cent reverse design would be the area at the bottom of the dome.   Look to the left of the triangular roof structure.   The entire obverse and reverse should be examined since doubling has been discovered on both sides of the coin.”

2009 Lincoln Presidency Doubled Die Obverse Variety Cent

For instance, this Lincoln cent is listed as “2009 1¢ PW WDDO-001 (stage B).”  Furthermore, “a die crack runs from SW to NE through the hair on the upper back of Lincoln’s head.

2009 penny error list

Moreover,  a large die gouge displays above the right end of the Capitol building.” (Noted by arrows in the image below.) Moreover, a die chip displays on the left end of the crane at the top of the unfinished White House. 

Click here to see more photos of the examples to compare provided by Mr. Wexler.  Furthermore, the best chance of finding 2009 penny errors and varieties is by searching through original bank wrapped rolls. 

2009 Bicentennial Presidency Cent Doubled Die Variety
2009 Lincoln Presidency Doubled Die Reverse Cent

Additionally, examining 2009 bicentennial mint sets ensures a mint state grade proof specimen. Furthermore, varietyvista.com listed a 2009 P Presidency cent displaying doubled die reverse.  “Extra thickness displays on upper and lower left windows # 3, 4, 5, and 6 from the Left.”

Moreover, “the frames around the windows and all of the columns are much thicker than on a normal 2009 Presidency Bicentennial Lincoln cent.” – John WexlerFollow directions to submit your coins for examination and attribution by Mr. Wexler for just $5.00 per coin.

2009 Bicentennial White House Cent Values

However, 2009 pennies don’t have to have errors or be varieties to be valuable.  For instance, a 2009 D Lincoln Cent Presidency graded MS68RD, sold for $4,700.00. Moreover, a 2009 Bicentennial Lincoln cent graded MS68RD, sold for $2,650.00. 

2009 Bicentennial Presidency Cent Doubled Die Variety

Moreover, the highest graded coins with the lowest population are extremely valuable.  2009 Lincoln Cent Bicentennial Presidency pennies sell for $5 and up each in raw condition on Ebay. 

 Additionally, note that 2009 P Presidency Lincoln cents have the lowest mintage of all 2009 pennies at 129,600,000 million coins.  In comparison to others minted, which were in the billions, look for it as a key date variety.

Presidency in Washington, D.C. (1861-1865)

“The Presidency in Washington cent displays the US Capitol building’s dome under construction, as it was during Lincoln’s term in office. The dome continued to rise as the Civil War raged and the Union struggled to remain united. 

The war began just after Lincoln took office in 1861. During his second year as president, Lincoln declared all slaves free in the rebel territory through the Emancipation Proclamation.

Furthermore, Lincoln was elected for a second term of presidency in 1864.  The war ended a year later.  It was only five days after the end of the war, that President Abraham Lincoln was assassinated during his attendance at a play in Washington.

Army doctors worked all night to save him, but he died the next morning at the age of 56.  He was buried in Springfield, Illinois, after his body lay in state and was visited by thousands of mourners underneath the Capitol’s newly-completed dome.”- usmint.gov.

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In summary, I had fun searching through 2009 pennies for rare errors and varieties.  For instance, observe this 2009 professional penny error I found searching through a roll of them.  If you like treasure hunting, then get yourself a coin microscope, a roll of 2009 Presidency in Washington Lincoln Bicentennial Cents, and get started. 

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.

2021 Lincoln Cent Errors, Varieties, and Values




2021 Cent Errors, Varieties, & Values

2021 Lincoln cent errors and varieties exist!  Furthermore, values vary depending on the condition of the coin, and/or the type of error, and/or die variety a coin is, along with its population. For instance, observe a 2021 Lincoln cent doubled die obverse compared to a normal 2021 penny in the images below. Not the doubling under Lincoln’s ear.

error pennies with pictures 2021 variety penny

Moreover, rare coins remain in high demand and collect a much higher premium.  Are you searching for penny errors and varieties in uncirculated 2021 Lincoln cent rolls?  It’s how I found them!  Additionally, examining 2021 mint sets ensures a mint state proof specimen.




Doubled Die Variety Coins 2021 Lincoln Shield Pennies

Does your 2021 shield cent look like it has an extra ear?  How do you discern the difference?  Is it a genuine die variety or a contact mark?  First, if a coin took a hit, then that area on the coin will appear flattened.  When a penny has a doubling, like this doubled die extra ear lobe cent, the area will be raised instead of flat.

double die penny image
Coin Groups & Community Forums

Daniel of Portsmouth Coin Shop explains the differences between rare doubled ear cent Lincoln pennies, and contact marks, or post mint damage (PMD,) on wheat cents and memorial pennies.




Furthermore,  Daniel made the effort to put together references online of cherry pickers’ lists of Lincoln cent varieties & key dates for members of the coin world community to utilize.

2021 penny error list
Collecting Rare & Valuable Die Varieties

“If collecting coins by date and mint mark became unexciting over the years, then do research into what varieties can be found for any series collected. It might re-kindle your passion for collecting and expand your enjoyment of the hobby.” – Jeff Garrett




2021 Penny Errors & Values

Furthermore, submitting a coin for grading doesn’t always equal a large profit.  Moreover, the cost of grading coins isn’t an option for everyone. However, when coins turn out to be highly sought after error or doubled die variety, then clear images is all that’s necessary to list them for sale online.

Moreover,  as long as you have the highest graded coin in the lowest population, it’ll be the most valuable coin.  Not all pennies are worth a lot of money, but some really are, therefore invest your time and efforts wisely!




2021 Lincoln Penny Values

For instance, a 2021-D 1C Shield cent graded MS66, sold at auction for $75.00.  It’s the grade that made it more valuable, even without being an error or variety.  Furthermore, a 2021 P Lincoln Shield cent graded MS67RD, sold for $73.

2021 d penny error list
2021 Shield Cent Clashed Die Error Coin

However, the coins had to be in pristine condition in order for these pennies to be worth money.  2021 Lincoln cent errors and varieties don’t have to be pristine to be valuable.




Variety & Error Pennies Worth Money

According to the recent sold listings on Ebay, 2021 doubled die varieties sell for $5 and up in raw condition. If you’ve found one yourself, you can choose to send it off for grading and then to auction, keep it in your own collection, or list it for sale as ungraded on Ebay It’s your decision. 

Looking Through Lincoln Cents Collectible Coin Book

Lincolncent.com is owned by famed numismatist Charles Daughtrey, author of the collectible coin book “Looking Through Lincoln Cents.”  Furthermore, he’s host of Coppercoins Auctions on Youtube.  Subscribe to his channel for opportunities to bid for rare coins and chances to win neat prizes!

Rare Error & Variety Collectible Coins

I was lured into the lucrative hobby of coin collecting after hearing the memo about the Great American Coin Hunt and West Point quarters in December of 2019.  When I first got started searching for collectible coins, I became more ecstatic as I made discoveries for myself.  Who doesn’t love a good treasure hunt?  




Furthermore, I invested in the coin examination supplies necessary for identifying coin errors and varieties.  Essentially, I started writing this blog about my experiences of finding, researching, and identifying coin errors and varieties found in circulation.

double die penny 2021
2021 DDR penny Doubled Die Reverse Lincoln Shield Cent

Interacting with and learning from others in the coin industry has for the most part been a pleasant experience for me.  However, coin collecting books are still very helpful references, and examining coins is a peaceful activity.  




Embracing the Coin Hobby

Furthermore, I’m a fairly quick study, but I’m constantly learning something new every day.  Therefore I encourage everyone to get more than one opinion.  Join coin groups, forums, and communities, and go to all the coin shows scheduled near you.  Whatever you decide to do with what you find, enjoy the hunt!

2021 Lincoln Cent Errors
Great American Coin Hunt the Largest Treasure Hunt of All Time

“The Great American Coin Hunt rallied hundreds of coin dealers and thousands of collectors to benefit the coin hobby.  The goal simultaneously encouraged new collectors to look at their change for rare coin specimens. Basically, the plan was to disperse over one million rare and valuable collectible coins into circulation.  




Additionally, everyone who participated created their own way of helping out. Hiding coins in public places, like Easter eggs.  The US Mint created West Point quarters for circulation, which had never been done before.

Furthermore, companies like NGC, PCGS, Littleton Coin Company, and ANA, all participated with their own creative programs.  It’s been said that this was the largest numismatic promotional program of all time.” – Rob Oberth –  (“Coin Dealers Helping Coin Dealers”)




The Booming Business of Numismatics

Have you found or inherited a unique rare coin or collection of them you’d like to sell?  “There are at least 5,000 active coin companies in the United States.  Moreover, they range in size from one-man operations to multi-national juggernauts with hundreds of employees.  

lincoln cent error coin guide 2021
Lincoln Shield Cent Series

Additionally, there are at least 10 to 15 companies with sales exceeding $100 million per year.  APMEX alone once touted annual sales approaching $2 billion or more.” – Jeff Garrett – rarecoingallery.com




Earn Money Flipping Coins

“It is quite funny how under the radar the rare coin business operates.  I still get odd looks when I meet someone for the first time, and they ask what I do for a living.  More than once, people have asked me if someone can make living selling coins.  Happily, I have been doing so for over 40 years!” – Jeff Garrett

Need more help “Understanding the Art of Rare Coin Submissions?” Listen to and learn from those most experienced numismatists in the coin industry.

rare double die penny
2021 Lincoln Cent Errors

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.

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!

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.