The year 2000 marked a major milestone on the modern calendar, and the United States Mint marked it with a massive production run of special collector coins.
This proof penny comes from the Lincoln Cent series and carries an S mint mark under the date.
Proof coins are made using polished dies and special blanks to give them mirror-like surfaces and sharp details.
The DCAM label stands for Deep Cameo, which means there is a stark, frosted contrast between Lincoln's portrait and the glassy background field.
While millions of standard pennies entered pocket change that year, these special proof pieces were sold directly to collectors inside protective government sets.
An extraordinary example of this modern proof penny crossed the block at Heritage Auctions.
Heritage Auctions is often written as HA in auction catalogs and price guides.
Professional coin graders certified the piece at a perfect 70 grade with the Deep Cameo designation.
A grade of 70 means the coin has zero flaws, spots, scratches, or contact marks under five times magnification.
Achieving a flawless grade is rare for any copper-plated coin, which helps explain why top-tier specimens command such strong attention at public sales.
Heritage Auctions recorded this notable sale under lot listing 1/04.
Modern proof coins are made carefully, but that does not mean every one of them is perfect.
Copper-plated zinc surfaces are delicate and can easily develop tiny spots or haze inside collector packaging.
A coin must survive decades without a single milk spot, fingerprint, or hairline scratch to earn that top 70 label.
Serious registry set collectors actively compete against each other to own the finest known examples of every modern year.
That high-level collector demand pushes prices upward when an unblemished Deep Cameo piece finally enters an auction.
A standard proof penny with tiny blemishes sells for a very modest amount, so condition alone drives the premium on this specific piece.
You can start by looking closely at the date on the front of your penny.
Look right below the numbers 2000 for a small letter S, which shows it was struck at the San Francisco Mint.
Hold the coin under a good lamp and tilt it gently from side to side.
A Deep Cameo piece will show heavy, milky frosting on Lincoln's profile and lettering, set against a dark, reflective mirror field.
Grab a 5x or 10x jewelers loupe to inspect the surfaces for any tiny copper spots, haze, or handling lines.
If you want a quick scan before buying magnifying tools, you can use Coin Value Checker on your phone to identify the basic type and date.
Do not confuse this proof coin with regular 2000 pennies made for circulation in Philadelphia or Denver, which have plain or D marks and standard satin surfaces.
Always hold proof coins strictly by their outer edges to avoid leaving permanent finger oils on the delicate fields.
Want a baseline before you go deeper? Start with the coin valuation app picks that held up in testing.