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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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. 

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2014 Lincoln Cent Errors, Varieties, and Values

2014 Lincoln Cent Clashed Die Error

2014 Lincoln cent errors and varieties exist!  For instance, this 2014 P shield penny displays a die clash on the obverse, and a reverse feeder finger error.  Furthermore, die clash errors like this are sought after error pennies!  For instance, they sell in raw condition on Ebay for $10 or more.

2014 lincoln cent errors

2014 Lincoln shield cent values may vary.  In other words, values depends on the type of error or variety, and the coin’s condition.  Clashed die shield cents value at $10 and up in raw condition on Ebay. However, shield pennies don’t have to have errors or be a variety to be valuable.

2014 Penny Values

For instance, a 2014 1C Shield cent graded MS69 RD, sold for nearly $2000.00.  Furthermore, a 2014-D 1C Shield cent graded MS69 RD, sold for $2,599.00.  Moreover, these 2014 Lincoln shield cents are the most valuable because of their flawless condition.

2014 penny error list

Furthermore, the best chance of finding uncirculated 2014 Lincoln cent errors is by searching through original wrapped bank rolls.  Additionally, examining 2014 mint sets ensures a mint state grade proof specimen.

Die Clash Penny Errors

Moreover, “a clashed die mark or die clash error occurs by opposing dies colliding with each other as a planchet fails to be fed into the striking chamber.

Penny Errors

Furthermore, most complete planchet misfeeds don’t result in clashed dies since dies normally don’t touch each other in the absence of a planchet. Moreover, dies operate with a safety margin referred to as minimum die clearance or minimum die distance.”

Additionally, “these terms refer to the closest approach the dies make in the absence of a planchet. In order for dies to clash, the dies must fall out of adjustment, making the minimum clearance zero (or less than zero).” – error-ref.comAdditionally, a similar example has been listed as TDC-1c-2014-01 via maddieclashes.com

Lincoln Cent Error List 2014 D
Feeder Finger Errors

A feeder finger scraping across an anvil die causes feeder finger errors.  In other words, die scrapes appear on a coin as closely-spaced, parallel ridges.”

Moreover, die scrapes may appear on the hammer die.  Additionally, other causes make die scrapes, but in most cases they’re difficult to distinguish from feeder finger damage.” – error-ref.com

2014 penny error value
2014 Shield Penny Doubled Die Varieties

Furthermore, 2014 Lincoln shield cent doubled die variety examples are available with images and listed at doubleddie.com or varietyvista.com.  Additionally, if you enjoyed this article, then check out an examination of a 2009 Lincoln cent die variety.  There are so many interesting coin errors to look for!  Thanks for subscribing!

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