The United States Mint struck this Lincoln Cent back in 1946 at the San Francisco facility.
World War II had just ended, and the mint returned to standard copper alloy planchets for everyday pennies.
The San Francisco Mint used the small "S" mint mark beneath the date to show where it was made.
Millions of these pennies went straight into general circulation across the country.
Most of them picked up heavy wear, fingerprints, and dark brown tarnish over decades of use.
Finding one that survived in fresh, untarnished condition is much harder than finding a circulated piece.
The "RD" designation stands for Full Red, meaning the metal retains its original bright copper luster without fading into brown.
A top-tier example of this penny made headlines through Heritage Auctions.
Heritage Auctions is widely known for handling elite numismatic sales and certified rarities.
The coin crossed the auction block with an elite grade of Mint State 67 Red.
Professional coin graders assign the MS67 grade only to pieces with virtually no contact marks and exceptional eye appeal.
The final bidding reached the 12/22 price level for this specific certified specimen.
Top-end collectors competed aggressively to add this high-grade survivor to their registry sets.
A typical pocket change find will not bring this kind of result because condition dictates the entire market value.
Standard 1946-S pennies are quite common in worn condition.
The true value comes down to extreme condition rarity.
Copper is a very reactive metal that oxidizes quickly when exposed to air, humidity, and touch.
Most uncirculated 1946-S cents developed spots or mellowed into red-brown and brown over time.
Very few examples managed to keep their full fiery red color without carbon spots or bag marks.
San Francisco strikes from this era also frequently suffered from soft details or worn dies.
Finding a sharp strike paired with pristine surfaces and full original red color creates massive demand among Lincoln cent specialists.
Advanced collectors will pay huge premiums for coins that sit at the absolute top of the grading population reports.
You can check your own 1946 cents with a few straightforward steps.
First, look at the front of the coin directly below the date of 1946.
You need to see a distinct "S" mint mark to confirm it was struck in San Francisco.
If there is no mint mark below the date, it was made in Philadelphia instead.
Next, examine the color of the copper under good lighting.
To qualify as Full Red, the coin must show at least ninety-five percent of its original bright orange-red mint luster.
If the coin looks chocolate brown or dark tan, it falls into the Brown or Red-Brown category and carries far less value.
Use a 5x or 10x jeweler's loupe to inspect Lincoln's cheek, jaw, and the wheat stalks on the back for any signs of wear.
Even tiny traces of friction on the high points will downgrade the coin from Mint State to an About Uncirculated grade.
If you want a fast preliminary opinion on your penny, you can scan it using CoinKnow or the Coin Value Checker app.
Always remember that only an official certification from a major grading service can confirm an elite grade like MS67 Red.
For quick field checks, take a look at a closer look at which coin valuation app actually works.