Your Old Coin Could Be Valuable!
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The 1990 No S Lincoln Penny is worth anywhere from $2,500 in lower mint grades to over $20,000 for pristine specimens. This elusive error coin is one of the most famous modern rarities in American history, representing a massive payday for lucky collectors.
| Condition / Grade | Estimated Value |
|---|---|
| PR67 Deep Cameo | $3,500 – $5,000 |
| PR68 Deep Cameo | $6,000 – $9,000 |
| PR69 Deep Cameo | $12,000 – $25,000 |
| Auction Record | $21,150 |
Why the 1990 No S Penny is a Collector’s Holy Grail
The story of the 1990 No S Lincoln Penny begins at the San Francisco Mint. Usually, coins minted in San Francisco are “Proof” coins—specially made for collectors with a mirror-like finish—and they feature a distinct “S” mint mark. However, in 1990, a few die pairs were missing the mint mark. This mistake led to the creation of a legendary error coin that shouldn’t legally exist.
Because these were originally packaged in 1990 Proof Sets, they are difficult to find in circulation. Most of them were discovered by eagle-eyed collectors opening their mail-order sets from the US Mint. If you are going through an old collection, using a top coin identifier app can help you distinguish between a common penny and a potential five-figure rarity. The sheer scarcity of this coin makes it a “white whale” for many enthusiasts.
When you look at your coin, you must verify that it has the “Proof” finish. A Proof coin has a shiny, liquid-like background and frosted details on Lincoln’s portrait. If your 1990 penny has no mint mark but looks like a regular, dull penny, it was simply made in Philadelphia and is only worth one cent. However, if the coin is incredibly shiny and lacks the “S,” you might have hit the jackpot. Many people use CoinKnow to get an initial scan of their coins to see if the luster matches that of a genuine proof.
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Understanding the Value of Different 1990 Lincoln Cents
It is vital to understand that not every 1990 penny without a mint mark is valuable. The Philadelphia Mint produced billions of Lincoln Cents in 1990, and none of them have a mint mark. These are “business strikes” meant for your pocket change. The “No S” error only applies to the Proof versions. To determine what you have, you should look at the 1990 Lincoln Penny price data for mint state red coins to see the difference in market demand.
The value of the 1990 No S Penny is driven by its population. There are estimated to be fewer than 200 of these error coins known to exist. This creates a massive supply-and-demand imbalance. While a regular 1990 penny is worth face value, the No S version represents a historic failure in quality control at the Mint, which collectors pay a premium for.
If you are unsure about the finish of your coin, CoinKnow can be a great asset. The app’s database helps users identify the difference between a high-grade business strike and a proof strike. Because the 1990 No S Lincoln Penny Value is so high, getting a professional grading consensus is the only way to realize the full market price.
Your Old Coin Could Be Valuable!
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| Penny Type | Mintage | Average Value |
|---|---|---|
| 1990 (Philadelphia – No Mint Mark) | 6,880,758,200 | $0.01 – $0.05 |
| 1990-D (Denver) | 4,898,799,643 | $0.01 – $0.05 |
| 1990-S Proof (Standard) | 3,299,559 | $1.00 – $5.00 |
| 1990 No S Proof Error | ~200 known | $3,000+ |
How to Identify a Genuine 1990 No S Penny
Identification is the most critical step. First, look at the surface of the coin. Does it mirror your reflection? If the coin is hazy or dull, it is likely a common Philadelphia penny. Second, check the sharpness of the strike. Proof coins are struck twice with high pressure, meaning the details of Lincoln’s hair and the “Memorial” on the back will be razor-sharp.
Collectors often look for “Deep Cameo” (DCAM) designations. This refers to the contrast between the frosted devices (Lincoln’s face) and the mirrored background. A 1990 No S Lincoln Penny with a DCAM finish is the most desirable. You can find more comprehensive 1990 penny value information to help you determine which specific sub-type of error you might be holding.
Your Old Coin Could Be Valuable!
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Another tip is to look at the rim. Proof coins have a very thick, sharp, and square-edged rim compared to the rounded edges of a regular penny. If you find a coin that meets all these criteria—no “S” mark, mirrored finish, and square edges—do not clean it! Cleaning a coin can destroy up to 90% of its value instantly. Instead, place it in a protective sleeve and consult an expert or use CoinKnow to document its condition before sending it to a grading service like PCGS or NGC.
The Grading Scale and Its Impact on Your Penny’s Worth
Coin grading is a 1-70 scale. For the 1990 No S Penny, anything below a grade of 67 is considered “low” for this specific error, yet it still fetches thousands. Most of these coins were preserved in sets, so they typically grade between PR67 and PR69. A PR70 (a perfect coin) would be a historic find and could easily break auction records.
The presence of “carbon spots” or red-brown oxidation will lower the grade significantly. Because pennies from 1990 are made of a zinc core with a copper plating, they are susceptible to “zinc rot” or bubbling. A clean, bright red surface is what every buyer is looking for.
Your Old Coin Could Be Valuable!
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| Grade | Market Price Range |
|---|---|
| Proof 67 | $2,800 – $3,500 |
| Proof 68 | $4,500 – $6,500 |
| Proof 69 | $15,000 – $22,000 |
Professional grading is expensive (often costing $50-$150 for high-value items), but for a coin this rare, it is an essential investment. An uncertified 1990 No S Penny will almost never sell for its full potential because buyers fear counterfeits. Authentication is the key to unlocking the massive value locked inside that small copper-colored disc.
Common Scams and “No S” Fakes to Watch Out For
Because of the high price tag, some dishonest sellers try to create “fake” No S pennies. The most common method is using a standard 1990 Philadelphia penny and trying to polish it to look like a Proof. However, a polished coin will have fine scratches on the surface, which a real Proof coin does not have.
Another trick is removing the “S” mint mark from a standard 1990-S Proof Penny. If a person uses a tool to grind off the “S,” they will leave a faint depression or “ghost” mark where the letter used to be. Under a microscope, these alterations are easy to spot. Always use a magnifying glass (at least 10x power) to inspect the area under the date.
If you are buying one of these coins online, only purchase items that have already been graded by PCGS or NGC. This protects you from buying a cleverly disguised Philadelphia penny. The marketplace for high-end errors is strict, and having a “Certified” slab is the only way to ensure your investment is safe.
Your Old Coin Could Be Valuable!
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Where to Sell Your 1990 Rare Penny
If you are lucky enough to own a genuine 1990 No S Lincoln Penny, you have several options for selling. The best way to get the highest price is through a major numismatic auction house like Heritage Auctions or Stacks Bowers. These venues attract wealthy collectors who are specifically looking for rare error coins to complete their collections.
Selling on eBay is an option, but it comes with risks. High-value transactions on eBay can sometimes lead to disputes or fraudulent returns. If you choose this route, ensure you use tracked and insured shipping and only sell to buyers with high feedback scores. Local coin shops are a “quick cash” option, but they typically offer 20-40% less than market value so they can make a profit on the resale.
Before selling, check the latest auction results. Price trends for rare coins can change based on the economy. Sometimes holding onto a rarity for another few years can result in a significantly higher payout if the market for modern errors remains hot.
FAQ
Q: Does a regular 1990 penny with no mint mark have value?
A: No. Millions of 1990 pennies were made in Philadelphia without a mint mark for everyday use. These are only worth one cent. The rare “No S” error only applies to the Proof version, which has a shiny, mirror-like finish.
Q: How many 1990 No S Lincoln Pennies are there?
A: Experts estimate that only about 200 to 250 of these coins were ever produced before the error was caught and corrected at the Mint. This makes it one of the rarest pennies of the late 20th century.
Your Old Coin Could Be Valuable!
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Q: Where can I find a 1990 No S Penny?
A: Most were found in 1990 United States Mint Proof Sets. If you have unopened or previously owned proof sets from that year, it is worth checking the penny to see if the “S” is missing.
Q: What is the highest price ever paid for this coin?
A: A 1990 No S Penny graded PR69 Deep Cameo sold at auction for over $21,000. Prices vary based on the current market and the specific grade of the coin.
Q: Can I find this coin in my pocket change?
A: While highly unlikely, it is technically possible if someone broke open a Proof Set and spent the coins. However, the shiny surface would likely be scratched or dulled from circulation, which would decrease its value significantly compared to a set-fresh version.