The United States Mint switched from zinc-coated steel back to bronze for pennies in 1944.
During the transition, a few leftover steel planchets from 1943 accidentally entered the coin presses.
The San Francisco Mint struck this particular Lincoln Cent on one of those stray steel blanks.
Finding a 1944 penny made of steel instead of bronze is one of the classic wrong-planchet errors in American numismatics.
The "S" mint mark under the date confirms it came from the San Francisco facility.
Very few of these off-metal errors ever left the mint buildings.
A top-quality 1944-S steel cent crossed the auction block through Heritage Auctions.
The sale closed with a final winning bid recorded at 08/21.
Professional grading services certified this piece at a grade of 66.
A grade of 66 means the coin is in premium uncirculated condition with only tiny, minor imperfections.
Most error coins of this vintage saw heavy circulation before anyone noticed them, which makes high-grade survivors unusual.
Certified holders protect the coin and guarantee its authenticity for high-end buyers.
Collector demand for wartime off-metal cents remains consistently high across decades.
The 1944 steel cents are the direct counterparts to the famous 1943 copper cents.
Only a tiny handful of genuine 1944-S steel pennies exist anywhere in the world.
Because San Francisco produced fewer total cents than Philadelphia, the branch mint steel errors are especially scarce.
The grade of 66 places this coin at the very top tier of quality for the variety.
Serious registry set collectors actively compete against one another whenever an example surfaces for public sale.
The easiest test requires nothing more than a simple household magnet.
A genuine 1944-S steel cent will stick firmly to a magnet because of its steel core.
If the coin does not stick, it is a regular bronze penny or an altered piece.
You must also check for altered dates under good lighting with a 10x jeweler loupe.
Fraudsters often shave down the number 3 on a common 1943-S steel cent to make it look like a 1944.
Look carefully at the date to ensure the final digit shows no signs of scratching, tooling, or strange spacing.
Check the "S" mint mark beneath the date to confirm it has sharp, original mint details.
You can use a mobile app like Coin Value Checker or CoinKnow to run a quick initial scan on your coin.
Genuine examples should also weigh around 2.7 grams, which is significantly lighter than a standard 3.11-gram bronze cent.
Plated bronze cents from 1944 are common novelty items and will fail both the weight and magnet tests.
If your penny sticks to a magnet and weighs correctly, submit it to a major third-party grading service for formal authentication.
Want to check coins as you find them? our roundup of the best coin valuation app options is built for that.