1943 Bronze Penny: How to Tell a Real One from the 99% That Are Fake

Almost every "rare 1943 copper penny" you see online is a 1943 steel cent that's been copper-plated, or a 1948 cent that's had the 8 reshaped to look like a 3, or a flat-out modern fake from overseas. Real 1943 bronze cents do exist — fewer than 30 are confirmed across all three mints — and they're among the most valuable US error coins ever struck. The odds are overwhelmingly against you having one, but the test takes five seconds, and the answer is worth knowing.

Why 1943 was different

Copper was a critical war material in 1943 — needed for shell casings, wiring, and electrical components. The Mint switched the Lincoln cent to zinc-coated steel for a single year, producing over a billion silvery-looking cents across Philadelphia, Denver, and San Francisco. Steel cents look and feel different from any other US coin in circulation: they're light, magnetic, and almost-white-silver in fresh condition (often rusty or grey by now).

At the start of the 1943 production run, a small number of bronze (95% copper) planchets left over from 1942 were still in the press feeder hoppers. Those planchets got struck with 1943 dies and slipped into circulation as bronze 1943 cents — a transitional error nobody noticed at the time.

Total estimated 1943 bronze survivors confirmed across all three mints sit in the low twenties — PCGS CoinFacts data points to roughly 15-17 known from Philadelphia, around five from San Francisco, and only a single confirmed example from Denver. Auction prices for confirmed examples have reached six figures and into the seven-figure range for the rarest mintmark variants.

The five-second test: magnet

This single test rules out 95%+ of candidates immediately:

• Real 1943 steel cent: sticks to a magnet (zinc-coated steel is magnetic).
• Real 1943 bronze cent: does NOT stick to a magnet (bronze is non-magnetic).
• Copper-plated steel counterfeit: sticks to a magnet (the underlying steel core gives it away regardless of the plating on top).

Pull a fridge magnet over the coin. If it sticks, it's either a regular 1943 steel cent (worth $0.10–$4 depending on grade) or a copper-plated counterfeit. Either way, it's not the rare bronze.

If it doesn't stick to a magnet, the next four checks

Failing the magnet test only narrows the possibilities. The remaining steps separate a real 1943 bronze from the more sophisticated fakes.

1. Weight

Bronze 1943 cents weigh 3.11 grams(the same as regular pre-1982 bronze cents). Steel cents weigh 2.70 grams. Counterfeits made by stripping plating off a steel cent and re-plating with copper still weigh ~2.70 grams. A digital jewelry scale (1¢ accuracy) is enough — if the coin weighs noticeably under 3 grams, it's not bronze.

2. Date alteration check

The most common counterfeit is a 1948 cent with the 8 carefully reshaped to look like a 3. Examine the date under 10× magnification. On a real 1943, the 3 has the standard Lincoln-cent serif and proportions used throughout the wheat-cent era. On an altered 1948, the bottom of the 3 often looks slightly thicker or oddly closed where the 8's lower loop used to be.

3. Surface and color

A real bronze 1943 cent will show the same natural copper toning, flow lines, and field characteristics as any other early-1940s Lincoln cent. Plated counterfeits often show pinkish or unnaturally bright copper color, plus visible plating boundaries near high points where the underlying steel shows through after wear.

4. Get it slabbed — no exceptions

Any coin that passes the first three tests goes to PCGS, NGC, or ANACS for professional authentication. All three services have authenticated essentially every confirmed 1943 bronze cent in existence and have catalogued the exact die characteristics. There is no scenario where a real 1943 bronze should be sold raw — the authentication cost ($30-100) is rounding error compared to the coin's value, and any seller refusing to slab is a red flag.

What about 1944 steel cents?

The mirror-image error happened in 1944. The Mint switched the cent back to bronze for that year, but a few leftover steel planchets slipped through and were struck with 1944 dies. 1944 steel cents are similarly rare and similarly valuable — same five-second magnet test in reverse. A 1944 cent that DOES stick to a magnet is the candidate; a regular 1944 bronze does not.

The realistic outcome for almost everyone

Among the hundreds of thousands of people who have wondered if their 1943 cent is the rare bronze, fewer than 30 confirmed examples have ever surfaced. The realistic outcome of the magnet test is: it sticks, you have a regular 1943 steel cent, worth $0.10–$4 depending on condition.

That's not nothing. 1943 steel cents are a one-year wartime novelty and worth holding as a piece of history, especially in higher grades or with the original silvery zinc finish intact. The catalog values for steel 1943s sit at $0.10 in Good condition and $4 in MS-63. They're collectible, just not life-changing.

If you actually have a candidate

If your coin doesn't stick to a magnet AND weighs ~3.11 grams AND the date looks original under magnification:

• Stop handling it. Bare cotton gloves, edge-only contact.
• Photograph it before sending anywhere.
• Send to PCGS or NGC for authentication. Pay the priority fee.
• If authenticated, contact a major auction house (Heritage, Stack's Bowers) for consignment. Don't sell privately.

The premium for a slabbed, certified, properly-marketed 1943 bronze cent over a privately-sold raw one is enormous. Every step of professional handling adds value.