1980 Susan B. Anthony Dollar Errors: Value Guide & Rare Varieties

The 1980 Susan B. Anthony dollar was publicly despised — confused with the quarter and rejected by vending machines and cash registers alike. Yet this "failed coin" quietly became home to some of the most dramatic mint errors of the modern era. A dollar struck on a nickel blank sold for $6,900. A repunched mintmark sits undetected on Denver coins worth $1 in change. This guide gives you a precise, step-by-step system to find them. See the complete 1980 SBA dollar value guide →

1980 Susan B. Anthony Dollar Specifications & Mintage

Before hunting errors, memorize what a normal 1980 SBA dollar looks like. Any deviation from these specs is your first diagnostic clue.

1980 Mintage Figures

Despite high mintages, top-grade examples are genuinely scarce. Heavy clad coins damaged each other in Mint bags, so MS67 specimens are rare across all mints and MS68 is virtually unknown. Full grade-by-grade values →

1980 Susan B. Anthony Dollar Error Quick Checks

Work through these checks in order. The weight check filters the most valuable errors in under a minute. Then move to mint-specific checks based on your coin's mint mark letter.

✅ Valuable Checks

⚠️ Trap Checks — These Look Exciting But Aren't Valuable

1980 Susan B. Anthony Dollar Error Values at a Glance

Error & Variety Values

1980 Susan B. Anthony Dollar Rare Errors & Varieties: Detailed Guide

Wrong Planchet Errors — The Holy Grails

Normal SBA dollar (left) vs. 1980-S struck on a nickel planchet (right), showing the dramatic size difference and cut-off design.

Origin & Background

In 1980, the Mint processed multiple denominations in the same facility. A tote bin not fully emptied of 5-cent nickel planchets could be refilled with dollar planchets — or a feeder malfunction sent a wrong-denomination blank into the dollar press. The dollar die then stamped its full design onto a planchet far too small to hold it.

How to Identify

• Weigh it first: Nickel planchet ~5.00 g; cent planchet ~3.11 g; quarter planchet ~5.67 g; dime planchet ~2.27 g. Normal SBA = 8.10 g.
• Check the edge: A nickel planchet is solid alloy throughout — no copper core visible on the edge. A cent planchet is copper-red in color.
• Measure the diameter: A nickel planchet (21.2 mm) is visibly smaller than an SBA (26.5 mm). The design will be cut off at the edges.
• Date and mint mark visibility: Errors showing the full date and mint mark command the highest premiums regardless of technical grade — a coin without a visible date is worth significantly less because it cannot be confirmed as a 1980 issue.

False Positives to Avoid

Normal weight variance (7.80–8.40 g) is within Mint tolerance. Gold-plated novelty coins weigh the standard 8.10 g and are not wrong planchet errors. Post-mint damage may cause minor weight loss but will never produce the dramatic 3+ gram differences seen in genuine wrong planchet errors.

Market Values

• Nickel planchet (~5.00 g): $4,000–$6,900+
• Cent planchet (~3.11 g, copper-red): $3,000–$3,769+
• Dime planchet (~2.27 g): $3,000+
• Quarter planchet (~5.67 g): $2,000+

1980-S struck on a copper cent planchet — the coin is copper-red, only 19 mm wide, and shows only the center of the design.

Auction Records

1980-S on Nickel Planchet: $6,900 for NGC AU58 and $4,320 for PCGS MS65. Notably, the circulated AU58 sold for more than the Gem MS65 — the date and mint mark were clearly visible on the circulated piece, which commands a premium in error collecting. 1980-S on Cent Planchet: $3,769 for PCGS MS63 RB (GreatCollections).

1980-D Repunched Mintmark (RPM) Varieties

Normal 1980-D mint mark (left) vs. RPM-001 showing a secondary D to the west (right).

Origin & Background

In 1980, the mint mark letter was hand-punched into each working die by a mint artisan. If the first impression was misaligned or too light, the artisan struck the punch again — in a slightly different position. This created a Repunched Mintmark (RPM): a permanent, repeatable variety visible on every coin struck from that die.

RPM-001 (D/D West) — The Primary Variety

• A secondary, underlying D protrudes clearly to the west (left) of the primary D.
• On the vertical bar of the D, look for a notch or separate vertical line running parallel to the main bar on the left side — as if the stamp struck twice at different positions.
• This is the most prominent 1980 RPM. Value: $20–$50 (MS63–MS65); $100+ (MS66+).

RPM-002 (D/D West) — The Secondary Variety

• Similar to RPM-001 but the offset is less dramatic. Requires careful comparison under magnification.
• Shows a distinct secondary punch but with a subtler westward offset than RPM-001.
• Value: $15–$40.

False Positives to Avoid

Machine Doubling on the mint mark appears as a flat, shelf-like step — not a notched secondary serif. A blob-like or filled D results from die deterioration as the die wore down from striking hard cupro-nickel planchets; this is common and carries no premium. See Traps section →

Source: Variety Vista — 1980-D RPMs

1980-S Business Strike Doubled Die Obverse (DDO)

Normal letters (left) vs. 1980-S DDO showing split serifs — the ends of letters fork into two distinct points.

Origin & Background

A Doubled Die Obverse (DDO) is created when the working hub strikes the die multiple times and the die shifts slightly between blows during the annealing (heating and hardening) process. The doubling is permanently engraved into the die, so every coin from that die shows identical doubling. This variety applies to business strikes (regular coins) only — not proofs.

How to Identify

• Doubling is most visible on IN GOD WE TRUST and LIBERTY.
• Apply the Split Serif Test: examine the ends (serifs) of letters like L, I, B, E, R, T, Y. A genuine DDO shows serifs split into two distinct points — like a snake's tongue.
• The doubling is rounded (not flat) and adds to letter width — the letters look wider and bolder, not thinner.
• This variety is often found overlooked in dealer junk boxes of SBA dollars.

False Positives to Avoid

Machine Doubling (MD) is flat and shelf-like, and subtracts from letter width — the original letter looks thinner. MD is extremely common on 1980 coins. If letters look thinner, it's MD with zero value.

1980-S Proof Repunched Mintmark

1980-S Proof S mint mark: normal Clear S (left) vs. RPM showing secondary serif ghosting (right).

Origin & Background

Proof dies are made with higher scrutiny than business strike dies, making a Proof RPM unusual and rare. The 1980-S Proof standard uses the Clear S (Type 2) punch with naturally bulbous, thick serifs — but on this variety, the artisan struck the punch twice, leaving a secondary impression.

How to Identify

• On proof coins only, examine the S mint mark under magnification.
• Look for a secondary outline or ghosting of the serif curves beyond the normally prominent Clear S design.
• The repunching shows as a distinct doubling of the S serif curves, not just the thick single impression of the standard Clear S.

False Positives to Avoid

The standard 1980-S Proof Clear S (Type 2) has naturally thick, bulbous serifs — do not mistake this for repunching. A filled or blob-like S is die deterioration. You are looking for a distinct secondary impression, not just a thick or partially filled letter. Standard 1980-S Proof value: $15–$20 (PR69 DCAM); $50–$80 (PR70 DCAM). See PCGS CoinFacts: 1980-S Proof →

Striking Errors: Off-Center Strikes & Broadstrikes

1980 SBA dollar off-center strike showing a crescent of unstruck blank planchet on one side.

Off-Center Strikes

The planchet was not properly seated in the collar before the dies struck. The result: a crescent-shaped blank (unstruck) area on one side, with the design shifted to the opposite side. Value increases sharply with severity:

• 10–20% off-center:$150–$250
• 30–60% off-center:$300–$800+
• Key premium: Value spikes dramatically if the full date and mint mark remain visible on the struck portion.

Broadstrikes

Broadstruck 1980 SBA dollar — the coin is wider than normal (no collar to contain metal flow) and the edge is completely smooth with no reeding.

A broadstrike occurs when the coin is struck without the retaining collar. Without the collar, the metal flows outward unchecked. Diagnostics: diameter exceeds 26.5 mm and the edge is completely plain — no reeding whatsoever. Value: $40–$100 (uncirculated examples command higher premiums).

False Positives to Avoid

Post-mint damage from machinery, tools, or accidents can create unusual coin shapes, but genuine off-center strikes have smooth, clean unstruck planchet surfaces. Hammered or flattened coins from damage will show tool marks and uneven surfaces.

Planchet Errors: Clipped Planchets & Improperly Annealed

1980 SBA dollar clipped planchet showing the curved bite missing from the edge and corresponding rim weakness (Blakesley Effect) opposite the clip.

Clipped Planchets

A curved, crescent-shaped piece is missing from the coin's edge, caused by the blanking punch overlapping a previously punched area on the metal strip. To confirm a genuine clip (versus post-mint damage), look for the Blakesley Effect: weakness or flatness on the rim directly opposite the clip. This happens because metal cannot flow properly during the upsetting (rim-forming) process when the planchet is already incomplete.

• Small clip (~5%):$20–$45
• Large clip (15%+):$50–$125
• Without Blakesley Effect: Likely post-mint damage, not a genuine clip.

Improperly Annealed Planchets

Improperly annealed 1980 SBA dollar — copper migrated to the surface during overheating, creating the characteristic dark, iridescent discoloration.

Before striking, planchets are heated and cooled (annealed) to soften the metal. If a planchet remains in the furnace too long, copper from the core migrates to the surface. The coin appears black, dark coppery, or iridescent red — very different from the standard silver-gray of a normal SBA dollar. Value: $100–$350. Professional authentication (PCGS or NGC) is required to confirm this is a manufacturing error and not fire damage or chemical exposure.

1980 Susan B. Anthony Dollar Common Traps to Avoid

These are the most common false positives that excite beginners — but cost experienced collectors nothing beyond face value.

⚠️ Trap 2: Machine Doubling (MD)

What You See:

Doubled-looking letters on LIBERTY, IN GOD WE TRUST, or the date. The letters appear to have a shadow or step on one side.

Why It Happens:

The hard cupro-nickel planchets caused the Schuler presses to shudder or bounce on impact in 1980. The die scraped the coin's surface as it retracted, creating a flat mechanical shelf on letter sides. This is damage, not a hub variety.

How to Tell It's NOT Valuable:

• MD is flat and shelf-like. True DDO doubling is rounded.
• MD subtracts letter width — the letter appears thinner. True DDO adds width.
• MD is extremely common on 1980-P and 1980-D coins due to planchet hardness.
• For comparison, see: NGC: Double Dies vs. Machine Doubling →

Machine Doubling (left) shows flat, shelf-like steps that make letters look thinner. True DDO (right) shows rounded split serifs that add to letter width.

Value: Face value only.

1980 Susan B. Anthony Dollar Grading Impact on Value

Grade affects value dramatically for 1980 SBA dollars — far more so than for most modern coins. Here's why:

The "Cliff" at MS67: In MS63 through MS66, thousands of examples exist and prices are modest ($2–$35). At MS67, populations drop to the hundreds. An MS67 1980-P is worth $100–$150; an MS67 1980-D commands $300+. MS68 is virtually unknown across all three mints and could bring $4,000+ for a confirmed example.

The culprit: the Mint stored SBA dollars in canvas bags. The heavy, hard clad coins bashed each other continuously, leaving bag marks (small nicks and abrasions) that lower grades. Coins lucky enough to avoid bag damage are genuinely rare in top condition.

For error coins, grade matters too — but secondary to visibility of the key feature. A wrong planchet error in AU58 with a clear date sold for more than a Gem MS65 with a partially cut-off date. Always prioritize how clearly the error diagnostic can be seen.

1980 Susan B. Anthony Dollar Authentication Guide

Not every coin needs professional grading — but for high-value finds, third-party authentication by PCGS or NGC is strongly recommended.

When to Submit to PCGS or NGC

• Wrong planchet errors: Always. The authentication slab (hard plastic holder) confirms the error is genuine, prevents cleaning, and unlocks the full auction value. Do not sell raw (unslabbed).
• Condition rarity (MS67+): Submit if you believe your coin is MS67 or higher. At these grades, a certified coin is worth many times an unslabbed one.
• RPM and DDO varieties: Certification adds credibility and market liquidity, especially for the RPM-001 in MS66 or higher.
• Improperly annealed planchets: PCGS or NGC authentication is required to confirm the discoloration is a manufacturing error, not fire damage or chemical exposure.

Useful Authentication Resources

• PCGS CoinFacts: 1980-P SBA Dollar — population data and auction records
• PCGS CoinFacts: 1980-S SBA Dollar (Business Strike)
• NGC Coin Explorer: 1980-D SBA Dollar — census data
• Variety Vista: SBA Dollars — complete variety listings

Dealer referrals and buying/selling resources are not available in the current data source. Check the American Numismatic Association dealer directory for vetted professionals.

1980 Susan B. Anthony Dollar: Frequently Asked Questions

Sources & Methodology

Values in this guide reflect auction records, certified coin population data, and dealer price guides as of January 2026. Primary sources include:

• PCGS CoinFacts: 1980-P SBA Dollar
• PCGS CoinFacts: 1980-S SBA Dollar (Business Strike)
• PCGS CoinFacts: 1980-S SBA Dollar Proof DCAM
• PCGS: Collecting 1980 Susan B. Anthony Dollars
• NGC Coin Explorer: 1980-D SBA Dollar
• NGC: Double Dies vs. Machine Doubling
• Variety Vista: 1980-D RPM Varieties
• GreatCollections: 1980-S Cent Planchet Error Auction
• Mint Error News (Issue 64) — Wrong Planchet Auction Records

Error coin values vary significantly based on grade, eye appeal, and visibility of the date and mint mark. All prices are estimates. Professional authentication by PCGS or NGC is recommended before buying or selling high-value errors.