The 1974-S Lincoln cent is part of the long-running Memorial reverse series.
This particular coin was struck at the San Francisco Mint in 1974.
Most Lincoln cents from this era were made for regular daily use across the country.
The San Francisco facility produced standard business strikes alongside proof coins during this period.
This piece features the classic copper composition used for pennies before the switch to zinc alloy in the 1980s.
The "RD" designation stands for Red, meaning the coin retains its original bright copper luster without fading into brown.
While millions of pennies left the mint in 1974, finding one that kept its factory-fresh appearance over decades is difficult.
A top-tier example of this penny crossed the auction block through Heritage Auctions (HA).
The coin was certified at a grade of Mint State 67 Red.
It realized a notable auction benchmark recorded at 2/16 in the sale archives.
A grade of 67 places a coin in superb condition with almost no noticeable surface flaws.
At this level, the strike must be sharp and the original copper color must cover nearly the entire surface.
Professional coin grading services examine these details under magnification to confirm there is no friction or contact damage.
Because major auction houses handle certified registry-quality coins, serious collectors compete strongly when such high grades appear.
The value of this specific coin comes down to condition rarity rather than total mintage.
San Francisco struck many pennies in 1974, but the vast majority went straight into pocket change.
Circulation causes copper to turn dark brown quickly through oxidation and handling.
Standard production runs at the mint also caused bag marks and planchet scratches before coins even left the building.
Finding an example that avoided contact marks and chemical toning is extremely unusual.
Registry set builders constantly look for the finest known specimens to improve their collection scores.
When supply at the Mint State 67 level is limited to just a few pieces, demand pushes auction bids higher.
To check your coin, you will need good lighting and a magnifying glass with at least 5x magnification.
Start by looking directly below the date on the front to find the small "S" mintmark.
Check the surface color under a direct light source to see if it shows true copper red or dull brown.
Inspect the high points of Lincoln's cheek and shoulder for any signs of grayness or wear.
Turn the coin over and check the steps and pillars of the Lincoln Memorial on the reverse for contact nicks.
You can use a mobile app like Coin Value Checker to get an initial reading on date and mintmark styles.
Keep in mind that common pocket change finds will almost never match the pristine quality of a certified MS 67 coin.
Only an untouched specimen with full red luster will draw interest from advanced variety and registry collectors.
Photograph it and let the app do the rest — see which coin valuation app is worth installing.