1988 Penny Error List with Pictures

Collectors reported the 1988 doubled-ear penny in 2011, more than twenty years after it was made. One sharply preserved example later brought $3,120 in April 2020.

There are other places to look, too. This 1988 penny error list covers changes in tiny initials, displaced designs, exposed zinc, and striking errors involving another coin.

The estimated range is $5–$3,500. Follow the visible clues below to see how the different errors formed and which prices fit them.

1. 1988-D Lincoln Penny Repunched Mintmark (Estimated Up to $100)

The lower part of D can have an extra outline on its left. This is the repeated mint letter reported on a 1988-D penny.

At that time, mint letters were still added separately to the die, the steel tool that stamps the coin. A shifted repeat of the punch could leave part of the earlier letter visible.

The finished tool then passed that extra stroke to the pennies it made. Lincoln and the date did not need to double with it.

A split copper coating or a flattened letter edge can look similar without coming from a repeated punch.

Estimated Value

For a clear matching example, estimate $5–$100. Minor repeated mint letters usually attract modest prices unless their separation is especially clear.

This range compares small Lincoln-cent mintmark varieties. It is not a recovered auction result for this exact lower-left stroke.

An unworn coin with a sharp D makes the feature easier to see. Brown color alone does not erase it, but heavy wear or surface damage can make a small repeated stroke difficult to establish.

How to Identify

Focus on the bottom of D rather than its rounded upper half. Under a 10× magnifier, look just left of the main upright stroke.

Turn the light and compare an ordinary 1988-D penny. A true extra stroke stays in place; a reflection can move or disappear.

Check for pale zinc exposed along a split copper edge. That line is different from an additional raised part of the letter.

This variety uses a normal blank, about 2.50 grams and 19.05 mm across. A scale, calipers, and a view of the smooth edge can check an accessible coin.

The small raised lower-left stroke beside D is the feature to match.

 

2. 1988 Lincoln Penny Clipped Blank (Estimated Up to $150)

One 1988 penny inquiry was identified as a clipped-blank error. The missing metal was linked to blank preparation, before the design was struck.

Blanks are punched from metal strips. An overlap with an earlier hole can leave a curved gap, while another cutting position can leave a straight edge.

Both shapes appear in reports for the year. The original inquiry does not establish that every reported shape belonged to the same coin.

A clip changes the blank itself. Cutting a finished penny later can also remove metal, so the edge and nearby design need to be examined together.

Estimated Value

An estimated $10–$150 covers genuine small clips through more obvious examples. The shape, amount missing, and surviving date influence the price.

A five-percent straight clip on a 2021 cent brought $114 in September 2025. That newer Shield cent offers a recent comparison, not a sale of the 1988 inquiry coin.

An attractive original edge is more useful than a dramatic percentage claimed by a seller. Sawed or filed pennies do not belong in the same range.

How to Identify

Place the missing section in full view, with the date still visible. A tight photograph of the gap alone can hide important changes around it.

Under a 10× magnifier, check for cutting grooves or a newly worked edge. Original lettering may weaken as it approaches a genuine clip.

A soft area on the opposite rim can help, but it is not proof by itself. Compare the remaining smooth edge as well.

Use a scale against the normal 2.50 grams and calipers against 19.05 mm along an intact width. A missing section should reduce weight.

The useful combination is an original cut surface and a surrounding strike that formed after the metal was already absent.

 

3. 1988 Lincoln Penny Struck Through Wire or Grease (Estimated Up to $300)

A thin groove can remain where a strand lay between the blank and the stamping tool. The illustrated 1988 example crosses from the L in LIBERTY toward Lincoln’s shoulder.

The strand is gone. Its exact material was not established, so the mark should not be assigned to steel wool or another specific source.

Grease or loose debris can block design in a less sharply shaped area. That type is also reported for 1988.

The two effects share an obstruction during striking. A narrow strand impression and generally weak letters still need different visual checks.

Estimated Value

Minor grease-filled detail can be estimated at $5–$30. A long, clear strand impression or stronger obstruction mark can fit roughly $30–$300.

For a recent comparison, a 2017-D cent with a front-side struck-through error sold for $228 in March 2025. Its date and back design differ from the 1988 wire example.

Original detail around the mark helps support the price. A scratch that simply cuts across an already finished coin does not carry the same premium.

How to Identify

Follow the narrow groove from L toward the shoulder with a 10× magnifier. Compare how the design meets the depression rather than judging its length alone.

A later scratch can leave sharp displaced metal alongside its cut. An obstruction during striking interrupts the design instead of scraping away a finished surface.

For a grease claim, compare the weak area with nearby sharp letters. Ordinary wear can soften a much broader area of Lincoln.

The cent normally has a smooth edge, weighs 2.50 grams, and measures 19.05 mm. Check with a scale and calipers if safe.

The long sunken path crossing the original design is the specific clue for the pictured strand impression.

 

4. 1988 Lincoln Penny Broadstrike or Partial Collar (Estimated Up to $350)

A penny’s face and edge can reveal different problems with the collar, the ring that restrains metal during striking. Without normal restraint, the coin can spread wider.

A 1988 example was cataloged as an uncentered broadstrike. Its design remained on the enlarged surface even though the surrounding border was uneven.

Partial-collar errors are also reported for the year. Here, only part of the blank’s thickness is held, potentially leaving a step along the edge.

That side-view feature must be checked on its own. An uneven border does not automatically prove that the collar partly engaged.

Estimated Value

Estimate $20–$350 for genuine broadstrikes or partial-collar examples, according to the amount of spreading and edge change. The estimate does not assign a sale to the reported 1988 partial collar.

A 1999 broadstrike graded MS65 Red sold for $67 in March 2023. MS65 means unworn with few marks; Red describes the remaining copper-red surface.

A clear side photograph helps justify stronger partial-collar claims. Extra width alone should not be priced as proof of both effects.

How to Identify

Measure several widths with calipers, using 19.05 mm as the normal starting diameter. Then view the edge at an angle instead of relying only on the front.

A broadstrike should retain the intended design on its expanded surface. A partial collar needs a real change in edge level, not merely a flattened rim.

Check the letters and side with a 10× magnifier for later crushing or tool marks. The normal penny edge is already smooth.

Weigh an accessible coin against 2.50 grams; missing metal suggests another issue. The complete design within extra spread supports broadstriking, while a consistent side step supplies the separate partial-collar clue.

 

5. 1988 Lincoln Penny Off-Center Strike (Estimated Up to $500)

Thirty percent and forty-five percent describe two separate 1988 examples. The first is attributed to Philadelphia; the second carries Denver’s D.

Both resulted from blanks sitting partly outside the stamping area. The tools could strike only the metal beneath them, leaving a plain crescent on the other side.

The thirty-percent example’s auction date appears in parentheses, indicating that the complete date was not visible. Its year should not be described as fully readable.

The displaced design stays on the surviving metal. It is different from a clipped coin, where part of the blank is physically missing.

Estimated Value

Genuine off-center examples can fit an estimated $20–$500. Larger shifts can be appealing, but a readable year and original surfaces remain important.

A four-percent off-center 2006 Memorial cent sold for $39 in March 2025. That modest error supplies a recent lower-level comparison rather than a price for the larger 1988 shifts.

The partly missing date on the Philadelphia example affects how its identity is established. Do not price an unreadable loose coin as a fully dated example automatically.

How to Identify

Find whatever remains of the date before estimating the displaced portion. If digits disappear beyond the struck area, record that limitation rather than guessing from their fragments.

Compare both faces. The design loss should follow the same misplaced blank, not a movement of just one stamping tool.

A 10× magnifier helps examine the border between untouched metal and the struck portion. Look for grinding that may have erased a design after minting.

A scale should be compared with 2.50 grams, and calipers with the original 19.05-mm size. Inspect the normally smooth edge for removed metal.

The real plain crescent next to matching design loss on both sides is the feature to establish.

 

6. 1988 Lincoln Penny on an Unplated Blank (Estimated Up to $500)

A 1988 penny can be gray without being a dime-metal error. Its normal zinc center is gray beneath the thin copper coating.

When a blank misses that coating before striking, the finished coin is called unplated. Certified examples are recorded for both Philadelphia and Denver.

The Philadelphia coin was graded ANACS MS63, an unworn condition with noticeable marks. The Denver example had a separate ANACS MS61 grade.

Their surfaces need to be judged individually. A gray coin made by chemical stripping after minting can imitate the color, but it does not share the same manufacturing history.

Estimated Value

The Philadelphia ANACS MS63 example sold for $55 in October 2018. Estimate approximately $50–$500 across genuine examples with differing condition and surface quality.

A later comparison is a 1995 unplated cent that brought $660 in January 2023. That coin’s different grade and preservation make it a stronger example, not a replacement price for the 1988 coin.

Clean original zinc matters. Rough chemical stripping should not receive an unplated-blank premium merely because the color is similar.

How to Identify

With a 10× magnifier, inspect the gray surface inside letters and around the portrait. Original fine detail should be distinguished from roughness left by chemical attack.

Check both faces and the smooth edge for remaining copper or unusual residues. Avoid rubbing or scraping to make the zinc brighter.

A scale may show slightly less than the normal coated cent’s 2.50 grams. Calipers compare the outline with 19.05 mm, but neither measurement proves the cause of gray color.

For a sealed coin, use its grading description and photographs rather than opening the holder. Confirmation that the blank lacked copper before striking is the important distinction from a stripped finished penny.

 

7. 1988 Lincoln Penny Cuds and Severe Tool Damage (Estimated Up to $750)

A broken edge of a stamping tool leaves a raised patch attached to the coin’s rim. Collectors call that patch a cud.

One certified 1988 example has a back-side cud. A different coin studied by Mike Diamond has a front-right cud and broad raised scars on both faces.

Those scars came from badly dented tools. The same coin also had copper rubbed from its blank’s edge before striking, leaving rough exposed zinc near the rim.

The edge abrasion and tool damage are different processes found together on one piece. Neither should be mistaken for ordinary later scratches.

Estimated Value

Smaller confirmed cuds can be estimated at $25–$250. For a striking, well-preserved example with severe tool damage and related features, use approximately $150–$750.

Those are estimates, not a recorded sale of Diamond’s complex coin. The coin’s raised scars, cud, and earlier blank abrasion contribute to one total value.

A 2021-D retained cud sold for $186 in September 2025. That newer Shield-cent break is a broad comparison, not a match for every feature of the 1988 piece.

How to Identify

Look first at the upper-left front and lower-left back on the complex example. Its broad scars rise from the surface because depressions in the tool filled with coin metal.

The front-right cud connects to the rim. A separate back-cud example should be compared with its own photograph.

Use a 10× magnifier to inspect the exposed zinc around the front rim and near the back edge. Its connection with the original strike distinguishes earlier abrasion from later filing.

Check accessible size and weight with calipers and a scale against 19.05 mm and 2.50 grams. Examine the smooth edge gently.

Raised tool scars and a rim-connected patch provide the visible starting points; the rough zinc band explains the additional blank damage.

 

8. 1988 Lincoln Penny Double Strike (Estimated Up to $800)

The second blow can overwrite some of the first design while leaving other parts visible. That overlap makes a double-struck penny more than a coin with thick letters.

A certified Philadelphia 1988 example received a second strike off center. The first coin had stayed in or returned to the stamping area instead of leaving normally.

The catalog does not fix one percentage or turning angle for that second blow. Those details must come from the actual overlap.

Both designs belong to the cent. If recognizable dime details appear underneath instead, the error involves a different starting coin.

Estimated Value

Use an estimated $100–$800 for a genuine double strike with clearly visible overlap. Separation between the two designs and readable identity help establish its appeal.

A 1979 cent with an off-center second strike brought $204 in September 2023. Its copper-rich composition differs from the zinc-centered 1988 penny, although the repeated-strike mechanism is comparable.

The range does not assign that sale to the certified 1988 example. A faint doubled edge from ordinary striking movement belongs in a different comparison.

How to Identify

Identify a piece of the first design, then follow a matching feature from the second strike. A repeated date, rim, or portrait can show the movement.

Examine the overlap with a 10× magnifier and compare both faces. Do not turn a vague extra line into an exact turning angle.

Check an accessible coin on a scale against 2.50 grams. Calipers can record the present outline against the usual 19.05 mm, allowing for movement of metal.

The smooth edge may retain useful evidence of spreading or later interference. Look for cuts or pressure marks from alteration.

Two connected sets of cent design, each belonging to a real blow, establish the double strike.

 

9. 1988 Lincoln Penny Partial Brockage (Estimated Up to $1,000)

The building’s right corner appears on the wrong face and sinks into the surface. It is also reversed, like an image in a mirror.

This happens when a struck coin interferes with the next blank. Its raised design presses a sunken copy into the new coin.

The effect is called a brockage. On the recorded 1988 example, it covers about thirty percent of the front near the seven-thirty position.

The image is enlarged and distorted, and the same coin also spread outward as a broadstrike. Those connected effects belong to one piece, not two separate error coins.

Estimated Value

Estimate $100–$1,000 for a clear partial brockage, depending on the visible mirror image and the coin’s condition. The whole coin is valued once, including its outward spread.

An undated cent with a full front brockage sold for $192 in March 2025. It offers a recent comparison with a different amount of coverage.

The 1988 thirty-percent example was auctioned in 2004, but no sale price is assigned here. A visible building corner is more persuasive than an unexplained depression.

How to Identify

Find the lower-left part of the front, around seven-thirty on a clock face. Use a 10× magnifier to trace the sunken building corner.

Compare it with a normal Memorial image reversed left to right. The shapes can be stretched, so follow several joined architectural features rather than a single line.

The image should be recessed instead of raised. Later squeezing between coins must also be excluded through the surface and edge.

Use a scale against 2.50 grams and calipers against 19.05 mm when safe. The broadstrike can enlarge the smooth-edged outline.

A recognizable sunken mirror image of the Memorial on Lincoln’s side is the key to this partial brockage.

 

10. 1988 Lincoln Penny Struck Over a Dime (Estimated Up to $2,000)

The coin started as a finished 1988-P dime. After entering the cent press, it received another denomination’s design on top.

The recorded example keeps all four digits of the dime’s year and its P mint letter. Of the cent’s date, both final eights are clear and the nine is partial.

Roosevelt’s portrait lies almost upside down relative to the Memorial. That relationship helps separate the two designs.

The combination is called a double-denomination error. Its original metal is the layered copper-nickel structure of a dime, not the coated zinc normally used for a 1988 penny.

Estimated Value

The NGC MS66 example sold for $1,092.50 on February 11, 2006. Its grade describes an unworn coin with very few marks.

Estimate $600–$2,000 for genuine cent-over-dime examples with comparable visible identity. The older 1988 sale can be compared with a 2001 cent over a 2001-P dime that brought $1,320 in September 2025.

The newer sale is a different coin and year. Clear surviving pieces of both designs matter more than a gray color alone.

How to Identify

Find the dime’s complete date and P on the illustrated example. Then follow Roosevelt’s outline and compare its direction with the Memorial.

A 10× magnifier helps distinguish older dime details from marks in the newer strike. The partial cent date must not be described as fully intact.

Weigh an accessible coin against the dime’s normal 2.268 grams, rather than the cent’s 2.50 grams. Calipers can record expansion from the dime’s 17.91-mm starting size; a normal cent is 19.05 mm.

Examine the layered edge and any remaining dime grooves for later alteration. The surviving Roosevelt design beneath cent details proves that a finished dime, rather than an unused blank, was struck again.

 

11. 1988 Lincoln Penny Flared G Back Design (Estimated Up to $3,000)

The designer’s tiny FG initials can reveal a back design used one year early. Look beside the lower-right corner of the Memorial.

On the normal 1988 design, G has a plain right upright. The 1989-style G has small outward projections at both ends of that stroke.

Collectors call it Flared G or the Reverse of 1989. Here, reverse simply means the back of the coin.

Both Philadelphia and Denver 1988 cents are known with this change. A wide gap between A and M in AMERICA is normal for 1988 and does not identify this variety.

Estimated Value

Estimate roughly $20–$1,000 for Philadelphia examples and $50–$3,000 for Denver examples, depending strongly on condition. Sharp original color can make a large difference.

PCGS records a Philadelphia MS66 Red eBay result of $890 in July 2023. It also records a Denver MS67 Red eBay result of $2,600 that April.

These are different grades as well as different mints. They should not be treated as a fixed price ratio between every no-letter and D example.

How to Identify

An ordinary 1989 penny makes a useful comparison for the shape of G. Place its FG area beside the suspected 1988 variety under a 10× magnifier.

Check both ends of G’s right upright for small projecting strokes. A copper bubble or a scratch beside the letter should not substitute for its actual shape.

Confirm the 1988 date and whether D is present before using a price. The normal wide AM spacing supplies no extra rarity here.

Calipers and a scale should remain near 19.05 mm and 2.50 grams on an accessible coin, with a smooth edge. The two flared ends of G are the detail that identifies the different back design.

 

12. 1988 Lincoln Penny Doubled Ear (Estimated Up to $3,500)

An extra rounded lobe hangs below Lincoln’s ear on this recognized variety. The rest of the portrait does not need an equally obvious repeated outline.

The doubling was already in the stamping tool. Each penny made from that tool could receive the same extra ear detail in one strike.

The variety is known as FS-101. That number helps identify the pattern, rather than describing a condition grade.

Specialists reported it in 2011 after examining the actual coin. Similar doubled ears exist on other dates, but their extra details must not be added to the 1988 pattern.

Estimated Value

A PCGS MS66 Red example brought $3,120 on April 15, 2020. It was unworn, had very few marks, and retained its copper-red color.

For identified examples across a broader condition range, estimate $200–$3,500. The recorded auction result shows what a particularly well-preserved coin achieved, not the automatic value of every extra-looking ear.

Strong separation helps collectors see the feature. Wear, corrosion, or damage around the ear can make both identification and price comparison harder.

How to Identify

With a 10× magnifier, study the bottom of Lincoln’s ear. The additional lobe should project below the normal one, rather than appear as a random bump beside it.

Change the light direction and compare a clear FS-101 photograph. Do not require the beard or clothing doubling found on different dates.

A flat shelf caused by strike movement looks different from the rounded repeated ear. Split copper can also leave misleading bright lines.

The coin keeps normal dimensions: about 19.05 mm and 2.50 grams. Check with calipers and a scale when safely accessible, and inspect the smooth edge.

Two distinct lower-ear contours in the correct position are the clearest starting point.

 

Conclusion

The ear and the small FG initials offer two focused places to begin a 1988 penny search. Larger shape changes require a wider view, especially when another coin or blank affected the strike.

Estimated values extend from $5 to $3,500. Compare the actual feature before applying a price: a second earlobe, a flared G, gray zinc, and a sunken mirror image each tell a different story.