1943 Steel Penny
Value, Error list & Coin Identifier App

Four Tests for a Potential 1943 Copper Penny

Error #1 — Copper / Bronze Planchet Error

The holy grail of Lincoln cent collecting — ~40 known across all three mints

1943 copper / bronze planchet error — struck on a leftover 1942 bronze blank instead of zinc-coated steel. Non-magnetic, 3.11g, brown toning. The rarest Lincoln cent.

When the Mint transitioned to steel production in January 1943, a small number of 1942 bronze planchets remained trapped in press hoppers. These leftover blanks were accidentally struck with 1943-dated Lincoln dies before the error was detected, creating what many consider the most famous error coin in U.S. history. The 1943-D copper cent is unique — a single confirmed example sold privately for approximately $1.7 million in 2010. Philadelphia examples (15–20 known) range from $100,000 to $400,000; San Francisco (5 known) from $200,000 to $920,000.

Authentication Required:

Neodymium magnet test (no attraction) + digital scale (3.11g) + natural brown toning + correct “3” date serif. All four must pass. Never clean. Submit to PCGS, NGC, or ANACS only — raw copper 1943 pennies are met with extreme skepticism in the market.

Error #2 — Off-Center Strike

Design shifted during striking — crescent blank area; date visibility key to value

1943 steel penny off-center strike — planchet was misaligned during striking, producing a crescent-shaped blank area and shifted Lincoln design.

Off-center strikes occurred when steel planchets were not properly centered in the press during 1943's high-volume wartime production. The resulting coin shows part of the design shifted toward one side with a blank crescent area on the opposite edge. Value scales directly with the percentage of misalignment: 10% off-center = ~$50; 50%+ with visible date = $400–$500+. The date must remain legible for the coin to command full collector premiums. Dramatic examples with 40–60% misalignment showing a clear date are the most desirable.

How to Identify:

The blank area shows the original planchet surface — smooth and featureless with no design. On steel cents, the blank portion is silver-gray; the struck portion shows the normal design. Estimate the percentage of blank area (a 50% off-center coin shows roughly half blank). Date visibility is the top value driver — without a readable date, value drops significantly.

Error #3 — Die Crack & Retained Cud

Raised lines from die fatigue — especially common on 1943 due to hard steel planchets

1943 steel penny die crack — raised line visible on the coin surface from a fracture in the steel die; cuds appear as raised blank blobs at the rim where the die has broken away.

The hardness of zinc-coated steel planchets placed extreme stress on dies during 1943 production, making die cracks more common on steel cents than virtually any other Lincoln issue. Cracks appear as raised lines on the coin surface, transferring the die fracture pattern into metal. The BIE error — a vertical raised line between B and E in LIBERTY — is a named variety found on 1943-P cents. Minor hairline cracks add $5–$15; major cracks through date or lettering bring $25–$50; retained cuds (where die material broke away entirely, leaving a raised blank blob at the rim) can reach $75–$100.

How to Identify:

Die cracks are always raised above the coin surface — run a fingernail lightly across the suspected crack. Raised = die crack (value). Incused/sunken = post-mint scratch (no value). Cuds appear as raised, smooth blobs at the rim where the die surface broke away. The famous BIE variety shows a small raised line between the B and E in LIBERTY on the obverse.

Error #4 — Repunched Mintmark (D/D RPM FS-501)

Only on 1943-D — ghost “D” below-left of primary; top auction $19,800 in MS66

1943-D steel penny D/D Repunched Mintmark (RPM) FS-501 — a second “D” impression appears below and to the left of the primary mintmark under magnification.

The 1943-D D/D Repunched Mintmark FS-501 is the most significant variety in the 1943 steel cent series outside of the copper planchet error. In the era of hand-punched mint marks, the “D” on Denver dies was sometimes struck more than once in different positions. On FS-501, a bold secondary “D” impression appears below and to the left of the primary “D,” creating a distinctive ghost or shadow effect visible under 10× magnification. Estimated 3,000–5,000 examples exist across all grades; even circulated examples command $70–$200, while an MS66 example holds the record at $19,800. The distinction between FS-501 (bold, clear) and the lesser FS-502 (subtle) significantly affects value.

How to Identify:

Locate the “D” mintmark on the obverse below the date. Under 10× or stronger magnification, look for a secondary “D” outline below and to the left of the main letter. The FS-501 variety shows a bold, easily discernible second impression — often described as a “shadow D.” Compare to NGC or PCGS VarietyPlus reference images to confirm. PCGS/NGC certification is recommended for examples potentially worth $500 or more.

Error #5 — Double Strike

Coin struck twice by press — two overlapping full or partial impressions

1943 steel penny double strike — two complete or partial die impressions appear on the same coin, one rotated or offset from the other.

Double strike errors occur when a coin is struck a second time by the press, either at the same alignment (in-collar) or at a rotated or offset position (out-of-collar). The result is two overlapping impressions of the Lincoln/Wheat design. In-collar double strikes show a clean second impression directly over the first; out-of-collar examples show an offset or rotated second impression with a broadstruck appearance on the second strike. The dramatic visual impact of a well-centered double strike commands strong premiums from error coin specialists.

How to Identify:

Look for doubled design elements that show full-relief second impressions — not the flat, shelf-like appearance of mechanical doubling (machine doubling), which has no premium value. On a true double strike, both impressions show raised design with clear separation. Measure the rotation angle between the two impressions if discernible; dramatic rotations (90°–180°) command the highest premiums.

Error #6 — Strike-Through / Capped Die

Foreign material between die and planchet — including the dramatic Capped Die variety

1943 steel penny strike-through — foreign material (grease, cloth, wire, or a die cap) between the die and planchet produces areas of missing or textured design, sometimes with the dramatic cap-over appearance of a capped die error.

Strike-through errors occur when foreign material is trapped between the die and planchet at the moment of striking. Standard struck-through grease errors ($25–$100) show smooth, flat areas of missing detail where die recesses were packed with grease. More dramatic struck-through cloth or wire errors create identifiable texture patterns worth $100–$500. The most valuable variant is the Capped Die error, where a previously struck coin sticks to the die and acts as a cap, striking subsequent planchets through this “cap” — a 1943-P Obverse Struck through Capped Die in MS63 sold for $2,530 in 2009.

How to Identify:

Struck-through grease appears as smooth, flat areas with missing detail that have sharp borders transitioning to normal design. Struck-through cloth shows a woven-fabric texture pattern. Capped die errors create a distinctive concave obverse and convex reverse appearance on affected coins. All genuine struck-throughs show the obstruction pattern as part of the original strike — not post-mint damage.

Error #7 — Missing Zinc Coating (Bare Steel Planchet)

Struck on uncoated or poorly coated steel — dull gray appearance, rapid rust susceptibility

1943 steel penny missing zinc coating — planchet was struck without proper zinc coverage, leaving bare steel exposed that appears dull gray and is prone to immediate rust oxidation.

The zinc coating process in 1943 was imperfect — planchets were sometimes struck with uneven, thin, or completely absent zinc coverage. Coins missing their zinc coating show a distinctly dull, dark gray appearance instead of the normal bright silver-white luster of a well-coated example. The exposed steel oxidizes and rusts rapidly; examples that retained their bare-steel surface without further rust are more collectible than fully corroded specimens. This error is distinct from normal post-circulation zinc wear — genuine missing zinc planchet errors show consistent surface quality across the entire coin rather than patchy wear patterns.

How to Identify:

A missing zinc error shows uniformly dull, dark gray or black surfaces across the entire coin with sharp, well-struck design details still visible. The coin should be magnetic (confirming steel composition). Distinguish from post-mint corrosion — which shows pitting, scaling, and loss of design sharpness — by examining the strike quality. A genuine missing zinc planchet was still properly struck and retains full design detail beneath the dull surface.