The United States Mint struck this special Lincoln Cent in 1986 at the San Francisco Mint.
It is not an everyday pocket change penny meant for spending.
Workers created it specifically for coin collectors as a proof strike.
Proof coins receive extra care during production compared to regular coins.
The mint used polished dies and specially prepared coin blanks to strike this piece.
San Francisco struck this cent with the classic Deep Cameo finish.
This method gives the coin a striking look with heavily frosted design details against bright, mirror-like backgrounds.
By the mid-1980s, the mint had improved its methods to make these proof finishes sharper than ever before.
A top-grade example of this coin brought a massive winning bid of $3,450.
Heritage Auctions sold the coin during a sale held in 1/03.
A major third-party grading service certified the piece at a perfect PR-70 Deep Cameo grade.
A PR-70 grade means a coin is technically flawless under professional examination.
Most collectible proofs never reach this grade because of tiny factory flaws or handling marks.
Bidders competed fiercely because certified perfection on modern proofs is extremely rare.
The price reflects what high-end registry set collectors are willing to pay for the absolute best example available.
The value of this 1986-S cent comes entirely from its perfect state of preservation.
San Francisco proofs from this era benefit from refined production techniques, but PR-70 DCAM still represents the absolute pinnacle of proof quality.
The mint made millions of proof sets in 1986, so common examples are very affordable.
Most of those coins grade at PR-68 or PR-69.
Even tiny hairline scratches, weak strikes, or microscopic spots will drop a coin from a 70 to a 69.
That single point difference causes a huge drop in market value.
Serious collectors want the finest known pieces for their personal sets.
Because so few coins qualify for the top grade, demand heavily outpaces supply at auction.
Start by looking at the date and mint mark on the front of the coin.
You should see the date 1986 clearly stamped to the right of Abraham Lincoln's chest.
Look directly below the date for a small "S" mint mark.
Check the surface finish next.
A genuine proof has sharp, frosted details on Lincoln's portrait and deep, reflective background fields.
To tell if a coin has a shot at a top grade, you need to use a 5x magnification glass.
PR-70 DCAM means absolute perfection with zero imperfections under 5x and maximum frost-to-mirror contrast.
If you see even one tiny contact mark, hairline scratch, or haze spot, the coin will not grade at PR-70.
Do not confuse this coin with standard copper-plated zinc pennies found in your change.
Regular circulation strikes from 1986 have no mint mark or a "D" mint mark and lack the mirror finish.
You can scan the coin with CoinKnow or Coin Value Checker to get a quick first check on its date, mint mark, and strike type.
Keep in mind that standard 1986-S proof pennies trade for modest sums.
Only an independently certified, flawless PR-70 Deep Cameo example can achieve record prices at auction.
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