The Lincoln cent is one of the longest-running coin designs in American history.
The United States Mint struck this particular penny back in 1921.
It carries the classic portrait of Abraham Lincoln on the front and two wheat stalks on the back.
Collectors refer to pieces from this era as Wheat pennies or Lincoln wheat cents.
A standard 1921 penny is made mostly of copper.
Finding a 1921 penny in worn pocket change is still relatively common.
Finding one that looks as fresh as the day it was made is a completely different story.
The letters "RD" stand for "Red", which describes the bright original copper color of the metal.
Heritage Auctions handled the sale of this outstanding piece.
Professional coin graders certified this penny at Mint State 68 Red.
A grade of 68 is nearly perfect on the standard 70-point collecting scale.
A coin at this grade level shows no trace of wear from circulation.
It has virtually no distracting contact marks, scratches, or spots anywhere on the surface.
The auction catalog lists the recorded sale result as 05/05.
Auction records like this happen when advanced collectors compete for top-tier preservation.
Coins in this condition do not show up often at major public sales.
Copper is a very reactive metal compared to silver or gold.
When exposed to air, moisture, or human fingers, copper quickly turns brown.
Most 1921 pennies spent decades circulating in everyday commerce.
People used them to buy newspapers, candy, and bus rides.
As a result, almost all surviving 1921 cents are dark brown and heavily worn down.
Very few people put fresh rolls of pennies aside in 1921 to preserve them.
That makes fully red, unblemished survivors extremely rare today.
Numismatists call this condition rarity.
The coin itself is not rare by date alone, but it is exceptionally rare in flawless condition.
Serious registry set collectors actively hunt for the single finest piece they can find.
That high demand pushes sale prices up when a top-graded piece finally crosses the auction block.
You will want good lighting and a simple magnifying glass to inspect your coin.
Start by looking at the date on the right side of Lincoln's chest to confirm it says 1921.
Check the space directly below the date.
If there is no small letter beneath the date, the coin was struck at the main mint in Philadelphia.
Next, examine the overall color of the coin under natural light.
A brown or dull coin has lost its original mint luster over time.
A true Red designation requires the coin to retain nearly all of its original copper glow.
Look closely at Lincoln's cheekbone, jawline, and the hair above his ear.
These high points are the first areas to lose their fine detail when a coin enters circulation.
Turn the coin over and check the tips of the wheat stalks on the reverse.
If you see flatness or smooth patches on the wheat heads, the coin has seen circulation.
If you want a quick starting point, a mobile tool like Coin Value Checker can help you identify basic coin details using your phone camera.
Keep in mind that typical pocket change finds will not match the grade of an auction record piece.
Always hold your coins by the edges so your fingers do not leave oils on the delicate metal.
For a ballpark before you go further, take a look at a closer look at which coin valuation app actually works.