2020 Lincoln Cent Errors: Value Guide & Rare Varieties

2020 Lincoln Shield cent obverse (left) and reverse (right) showing the Union Shield design.

With nearly 4 billion coins from each facility, neither the 2020-P nor 2020-D is scarce. Only specimens in exceptional condition (MS68+) or those bearing verified errors carry numismatic premiums. For standard circulation values, visit our full 2020 Lincoln cent value guide.

Run through these checks before spending your 2020 penny. The green cards are things to look for; the red cards are common traps. A basic 10× jeweler's loupe (available at hardware stores for under $10) is all you need for most of these.

⚠️ Common Traps — These Look Unusual But Are Worth Face Value Only

All verified errors and varieties for the 2020 Lincoln cent, plus condition-rarity premiums. Error type names link to detailed guides where available. Values are raw (ungraded) unless noted.

Each variety below is documented and confirmed by specialist attributers. Values listed are for raw (ungraded) coins unless stated. Having a coin professionally graded by PCGS or NGC can significantly increase value for the stronger specimens.

2020-P Doubled Die Obverse (WDDO-001)

Normal 2020-P LIBERTY (left) vs. WDDO-001 showing characteristic extra thickness on letter strokes (right).

Origin & Background

The United States Mint switched to a "single-squeeze" hubbing process in the late 1990s. Under this system, each die receives just one impression from a master hub. Occasionally the hub creates a slight secondary impression as it settles, producing Class VIII (Tilted Hub Doubling). This is the mechanism behind WDDO-001. Unlike the dramatic doubled dies of 1955 or 1972, this variety shows added thickness rather than clear separation between two images. It is cataloged by variety specialist John Wexler at doubleddie.com.

How to Identify

• Extra thickness on the vertical strokes of B, E, and R in LIBERTY — compare with a normal 2020-P cent side by side.
• The zeros in the date "2020" may appear slightly oval or distorted from the hubbing spread.
• Under 60× magnification, look for subtle notching at the corners of the T and Y in LIBERTY, or at the corners of the date digits.
• The key distinction: this variety adds thickness. Machine doubling (the most common false positive) removes width by shearing metal off the side of each device.

False Positives to Avoid

Machine doubling is the most common impersonator — it appears flat and shelf-like and actually makes letters narrower, not wider. Die deterioration doubling produces mushy, indistinct outlines on worn dies. Neither carries any premium. Ridge ring effects can make letters near the rim appear swollen, but this is die wear, not a variety.

Market Values

• $5–$10 — Raw, minor die state, average circulation quality
• $10–$20 — Raw, strong early die state, near-uncirculated condition

Auction Record

No single landmark auction record documented for this variety. Raw examples circulate privately. For the strongest specimens, professional authentication by PCGS or NGC is recommended.

2020-D Doubled Die Reverse (VDDR-001)

Normal 2020-D reverse lettering (left) vs. VDDR-001 with extra thickness on UNITED STATES OF AMERICA (right).

Origin & Background

The Denver Mint's VDDR-001 is listed in the Variety Vista files as a 1-R-VIII classification (Class VIII Tilted Hub Doubling on the reverse). The doubling is centrally located on the reverse die.

How to Identify

• Focus on the inscription UNITED STATES OF AMERICA and the designer initials on the reverse.
• Extra thickening of the lettering is the primary indicator — the spread is minimal.
• Requires at least 20× magnification. A side-by-side comparison with a normal 2020-D cent is the most reliable confirmation method.
• The shield's incuse vertical lines are not diagnostic — those commonly show ejection doubling from lighting angles regardless of die variety.

False Positives to Avoid

Machine doubling is rampant on 2020-D cents and will be seen on the reverse as well as the obverse. The critical test: machine doubling produces flat shelving and narrower letters; VDDR-001 adds thickness. Any claims of "Doubled Shield lines" without corresponding lettering thickening are almost certainly misidentifications of mechanical anomalies.

Market Values

• $2–$5 — Raw, confirmed attribution, average grade
• $5–$10 — Raw, confirmed attribution, near-uncirculated

Auction Record

No prominent auction record for this variety. Due to its subtlety, demand is limited to specialist collectors actively building variety sets.

2020 Die Cud — Marginal Die Break (CU-1c-2020-01)

Die cud (CU-1c-2020-01) showing the raised blob of metal at the rim where die steel broke away.

Origin & Background

A die cud forms when a section of the hardened steel die fractures and breaks away at the rim. With no die steel to restrict metal flow in that area, the planchet metal surges into the void during striking, creating a raised, featureless blob on the coin. The confirmed 2020 listing — CU-1c-2020-01 — is documented in the Cuds on Coins reference database. It progresses through die states: Stage A shows a complex network of die cracks and sunken die steel; Stage C shows the full marginal break with a bi-level die crack extending northward from an elongated cud.

How to Identify

• The raised area must be connected to the rim — this is the defining criterion for a true cud vs. an interior die chip.
• The raised metal is solid (not hollow like a plating blister). Press lightly — it will not depress.
• Look for radiating die cracks extending inward from the break point.
• Any design elements within the cud area will be obliterated — replaced by a featureless, rounded mass.

False Positives to Avoid

Plating blisters are smooth and hollow — you can depress them with a fingernail or toothpick. Interior die chips that don't touch the rim are genuine errors but less valuable. Post-mint rim damage can create raised areas, but these will show tool marks or distorted metal flow inconsistent with a die break.

Market Values

• $10–$20 — Small cud, minor visual impact
• $20–$50+ — Large, dramatic cud with clear die crack progression

2020 Off-Center Strike

2020 Lincoln cent struck approximately 20% off-center, showing the blank crescent and partial design.

Origin & Background

Off-center strikes occur when a planchet misfeeds into the coining chamber and is not properly centered in the collar. The dies strike only a portion of the planchet. Modern minting presses are equipped with advanced sensors that detect misfeeds and eject problem planchets before the strike, making major off-centers rarer for 2020 than for vintage years.

How to Identify

• Part of the design is missing on one side, replaced by a smooth, flat, unstruck crescent of planchet.
• The struck portion should show complete, sharp detail wherever the die made contact.
• The most desirable examples are 10%–50% off-center with the full date visible (date placement determines attribution).
• A coin only 1%–5% misaligned is within normal manufacturing tolerance — it carries no premium.

False Positives to Avoid

Damaged or bent coins from post-mint events (washing machines, dryers) can look like they were struck off-center, but the edges will show mechanical distortion rather than a smooth planchet surface. Broadstrikes (fully struck design without a retaining collar) are a different error category.

Market Values

• $20–$35 — 10–15% off-center, full date visible
• $35–$50+ — 15–50% off-center, full date visible, strong eye appeal

2020 Die Clash — "Prisoner Lincoln"

"Prisoner Lincoln" die clash: Union Shield vertical bars from the reverse impressed across Lincoln's bust on the obverse.

Origin & Background

A die clash occurs when the obverse and reverse dies strike each other directly — without a planchet between them. Each die picks up a mirror impression of the opposite die's design. On subsequent strikes with a planchet present, these transferred impressions appear as ghost images on the coin. On 2020 Shield cents, the most dramatic clashes show the Union Shield's vertical bars impressed across Lincoln's chest and face, earning the nickname "Prisoner Lincoln" because the bars resemble prison bars.

How to Identify

• Hold the coin at a low angle under strong, raking light (a single LED flashlight works well).
• Look for faint parallel lines on Lincoln's bust that match the spacing of the Union Shield's vertical bars from the reverse design.
• True clash marks must follow the exact geometry of the opposite die — random scratches or die polish lines will not match.
• A full, clear clash showing multiple distinct shield lines is significantly rarer and more valuable than a minor partial clash.

False Positives to Avoid

Contact marks and scratches from circulation can create parallel lines, but they won't match the shield's precise geometry. Die polish lines are parallel and evenly spaced but are intentional — they typically run across the entire field, not specifically across the portrait.

Market Values

• $5–$10 — Minor or partial clash, faint impression
• $10–$30+ — Strong, full clash clearly showing shield bar geometry across the bust

The 2020 Lincoln cent market is saturated with listings for supposed "rare errors" that are, in reality, standard manufacturing byproducts of the copper-plated zinc composition and high-volume production. Knowing these traps will save you real money.

⚠️ Machine Doubling (Mechanical Doubling Damage)

What You See:

A flat, shelf-like shadow next to the date, LIBERTY, or IN GOD WE TRUST lettering. Looks like a double image at first glance. Extremely common on 2020-D cents.

Why It Happens:

The die is slightly loose in the press. After striking the coin, the die shifts or bounces as it retracts, shearing a flat shelf off the freshly struck design. It's a press maintenance issue, not a die variety.

How to Tell It's NOT Valuable:

• The doubling is flat and shelf-like — true doubled dies show rounded, three-dimensional doubling.
• It reduces the width of letters and digits. A DDO adds thickness; machine doubling removes it.
• The shelf is always on one consistent side, parallel to the device edge.

Side-by-side: machine doubling with flat shelf (left, no value) vs. true doubled die thickness (right, collectible).

Value: Face value only.

⚠️ Ridge Ring / Die Deterioration (Late Die State)

What You See:

A raised, irregular, often mushy ridge just inside the rim, frequently running through the tops of the letters IN GOD WE TRUST and LIBERTY, making them appear swollen or fused to the rim. Very common on 2020-D.

Why It Happens:

After striking millions of hard zinc planchets, the die steel fatigues. Metal flows toward the rim, creating a channel (trench) in the die face. The coin shows this trench as a raised ridge. This is called a "Late Die State" (LDS) coin.

How to Tell It's NOT Valuable:

• The ridge forms a continuous arc just inside the rim — a die cud is a localized solid blob at the rim.
• Detail throughout the coin is often mushy or soft, confirming a worn die.
• Despite eBay listings priced at $500+, numismatists consider these coins with detracted eye appeal — actually less desirable than a sharp strike.

Ridge ring running inside the rim through IN GOD WE TRUST — a sign of a worn die, not a mint error.

Value: Face value only.

⚠️ Plating Blisters & Zinc Defects

What You See:

Smooth, rounded bumps anywhere on the coin, or raised lines crossing the coin's surface ("linear plating blisters"). Sometimes the plating turns dark or peels — this is zinc rot.

Why It Happens:

The copper plating on a post-1982 cent is extremely thin — often less than 20 microns. Contaminants or gases trapped between the plating and the zinc core expand during striking, pushing the copper up. If the plating is broken, the exposed zinc oxidizes rapidly.

How to Tell It's NOT Valuable:

• A plating blister is smooth and can often be slightly depressed with light fingernail pressure — a die chip is solid and will not depress.
• Blisters can appear anywhere on the coin; die chips form only in locations matching pits in the die face.
• This is a quality control defect present on millions of 2020 cents — not a rare error.

Plating blister (smooth, hollow, left) vs. genuine die chip (solid, jagged edges, right).

Value: Face value only.

Coins are graded on the Sheldon scale from 1 (barely identifiable) to 70 (perfect). For 2020 Lincoln cents, the grade thresholds that matter most are:

Grade comparison for 2020 Lincoln cents: MS65 with visible contact marks (left) vs. MS68 near-perfect surface (right).

The zinc composition makes achieving MS70 (perfect) nearly impossible due to microscopic rinsing spots, plating bubbles, and contact marks from high-speed bin handling. The gap in value between MS67 and MS68 is dramatic because so few 2020 cents survive the minting process without surface defects. The designation Red (RD) indicates the coin retains its original mint luster — Red-Brown (RB) or Brown (BN) coins have begun to tone and command lower premiums.

Professional authentication by the Professional Coin Grading Service (PCGS) or the Numismatic Guaranty Company (NGC) — the two leading coin grading services — is recommended in specific situations. Certification involves the coin being encapsulated in a tamper-evident plastic holder ("slab") with its grade and designation printed on the label.

When Certification Is Worth It

• High-grade business strikes (MS66+): The value gap between MS67 and MS68 is substantial enough that professional confirmation is essential for any significant transaction.
• Significant errors (cuds, off-center strikes, strong die clashes): Certified errors command higher prices and attract more buyers than raw examples.
• Any coin you believe may be worth $50 or more: Certification fees typically run $20–$40 per coin (check current PCGS and NGC fee schedules directly). If the coin is worth $50+, certification protects your investment and makes the coin easier to sell.

When Certification Is NOT Worth It

• Minor varieties (WDDO-001, VDDR-001) valued under $20 raw — fees exceed the value.
• Machine doubling, ridge rings, plating blisters, or other pseudo-errors — these will not receive special designations.
• Standard circulated coins — these are worth face value regardless of grade.

Dealer and submission service information: contact PCGS or NGC directly for authorized dealer lists and current grading fees.

Values and diagnostics in this guide are based on the following primary sources. All URLs were active at time of research (January 2026). eBay asking prices were intentionally excluded due to the widespread inflation of pseudo-error listings for the 2020 cent.

• PCGS CoinFacts — 2020 1C Shield RD (Business Strike) — auction records, population data
• PCGS CoinFacts — 2020-S 1C Shield RD (Proof) — proof population and auction records
• NGC Coin Explorer — 2020-S 1C Proof — census and grade data
• Wexler's Coins and Die Varieties — 2020-P WDDO-001 — variety diagnostics and attribution
• Variety Vista — 2020-D Doubled Die Reverses — VDDR-001 classification and diagnostics
• Cuds on Coins — Lincoln Cent Cuds 2020–Present — CU-1c-2020-01 die state documentation
• Cuds on Coins — Lincoln Cent Spike Heads 2020–2029 — SKH-1c-2020-02 documentation
• U.S. Mint — Official Coin Specifications — composition, weight, diameter
• Lincoln Cent Mintages (lincolncents.net) — Philadelphia and Denver production figures