1990-S Roosevelt Dime Value: Most Recent Prices and Rarities

The 1990-S Roosevelt Dime is worth anywhere from $2.00 in standard Proof condition to over $3,500 for the incredibly rare “No S” error. While most of these coins found in collections are common San Francisco proofs, the absence of a tiny mint mark can transform a pocket-change find into a massive payday.

Condition / Variety	Estimated Market Value
1990-S Proof (Deep Cameo)	$2.00 – $15.00
1990-S “No S” Error (PR69)	$3,000 – $5,000
1990-S “No S” Error (PR70)	$15,000+

What Makes the 1990-S Roosevelt Dime Special?

If you have stumbled upon a 1990-S Roosevelt Dime, you are likely looking at a “Proof” coin. Unlike the dimes people use every day at the grocery store, the San Francisco Mint produced these specifically for collectors. They feature a mirror-like background and frosted details. To accurately assess if your coin is a standard proof or a rare treasure, many hobbyists use a top coin identifier app to zoom in on the mint mark area.

The 1990-S Proof Dime was part of the annual Proof Sets sold by the United States Mint. Over 3.2 million of these sets were produced, making the standard version very common. However, a legendary mistake occurred at the mint that year. A small number of proof dies were sent from Philadelphia to San Francisco without the “S” mint mark.

This error resulted in a handful of dimes being struck in “Proof” quality but missing their identification. In the world of numismatics, this is known as the “No S” 1990 Dime. If you suspect you have one, using a tool like CoinKnow can help you compare high-resolution images of genuine errors against common circulation strikes.

The Rare 1990 “No S” Proof Dime Error

The “No S” error is the “Holy Grail” for modern dime collectors. Only about 200 to 250 of these coins are estimated to exist. They were accidentally included in standard 1990 Proof Sets. Because they were mixed in with millions of normal sets, many remained undiscovered for years. It is important to check the 1990 Roosevelt dime worth and rarity chart to ensure you aren’t confusing a regular Philadelphia business strike with this proof error.

The key difference is the finish. A regular 1990 dime from Philadelphia (which also has no mint mark) will look like a standard, dull coin. The rare “No S” error will have a distinct, shiny, reflective surface. The frosting on the portrait of Roosevelt will be sharp and white, contrasting against a black, mirror-like field.

If you find a dime that looks exceptionally shiny but lacks a mint mark, do not clean it! Collectors value original surfaces. You can use CoinKnow to track auction results for similar errors to see what they are currently fetching at major auction houses like Heritage or Stack’s Bowers.

Grading and Value for the 1990-S Proof Dime

For the standard 1990-S Proof Dime, value is determined almost entirely by its grade. These coins are expected to be near-perfect because they were never meant for circulation. Professional graders use a 70-point scale, where PR70 is a perfect coin. Even a tiny hairline scratch can drop the value significantly.

Grade (PCGS/NGC)	Standard 1990-S Value	“No S” Error Value
PR67	$3.00	$2,800
PR68	$5.00	$3,250
PR69	$12.00	$4,500
PR70	$45.00	$18,000+

Most collectors today look for “Deep Cameo” (DCAM) designations. This means the contrast between the shiny background and the frosted design is very intense. If your coin is just a “Cameo,” it will be worth slightly less. For those curious about how these compare to regular business strikes, you can view the current auction records for 1990-P Roosevelt dimes to see the price gap between common coins and proof errors.

Comparing the 1990-P, 1990-D, and 1990-S

To understand the 1990-S Roosevelt Dime value, you must distinguish it from its siblings. In 1990, the US Mint produced billions of dimes for general use in Philadelphia (P) and Denver (D). These are common and usually only worth $0.10 unless they are in pristine, uncirculated condition or have a major mint error.

The 1990-P dimes produced in Philadelphia do not always carry a mint mark, but they are not proofs. They have a “satin” or “bag” finish, not a mirror finish. The 1990-D dimes carry a small ‘D’ mark above the date. The 1990-S was only available in sets, never in bank rolls.

If you are sorting through a jar of coins, CoinKnow can act as a digital catalog to help you keep track of which mint marks you’ve found. This is particularly helpful when looking for “Full Band” (FB) details on the reverse of the dime, which can add a premium to uncirculated business strikes from Denver or Philadelphia.

How to Identify a Real 1990-S Proof at Home

Identifying a proof coin is the first step in knowing if you have found something valuable. First, look at the edges. Proof coins are struck twice with high pressure, resulting in very sharp, squared-off edges and high-detail wire rims. A regular dime will have slightly rounded edges.

Second, look for the “mirror” effect. Hold the coin near a piece of paper with text on it. On a proof coin, you should be able to see the reflection of the text clearly in the background of the coin. On a regular 1990-P or 1990-D dime, the surface will be too dull to show a reflection.

Third, check the mint mark. If it has an ‘S’, it is a standard proof. If it looks like a proof but has nothing there, you may have the “No S” error. Because this error is so valuable, many fakes exist. Some people try to sand off the ‘S’ mark. Use a magnifying glass to look for scratch marks or discoloration in that area.

Where to Sell Your 1990-S Roosevelt Dime

If you believe you have the rare “No S” variety, your first step should be professional authentication. Companies like PCGS or NGC are the industry standard for verifying major errors. A “No S” dime must be slabbed to reach its full market value. Raw, uncertified errors are often met with skepticism by buyers.

For standard 1990-S coins, selling them individually can be difficult due to shipping costs. Most collectors buy them as part of a complete 1990 Proof Set, which usually sells for $5 to $10 on platforms like eBay. Local coin shops might offer you a “bulk” price if you have many of them.

Online marketplaces are the best bet for high-grade PR70 specimens. Always take high-quality photos in natural light to showcase the “Deep Cameo” effect. Listing the coin with a clear description and mentioning whether it came from a direct Mint Set will help attract serious collectors.

Sales Platform	Pros	Cons
eBay	Largest audience of buyers	High fees (approx 13%)
Local Coin Shop	Immediate cash payment	Lower offer than retail
Heritage Auctions	Best for “No S” rare errors	Long wait times for auction

FAQ

Q: Is a 1990 dime with no mint mark rare?

A: Usually, no. Most 1990 dimes with no mint mark were made in Philadelphia and are worth just 10 cents. However, if the coin is a “Proof” (mirror-like surface) and has no mint mark, it is the extremely rare “No S” error worth thousands of dollars.

Q: How many 1990-S No S dimes were made?

A: It is estimated that only 200 to 250 of these error coins were accidentally released in Proof Sets before the U.S. Mint caught the mistake.

Q: What is the highest price ever paid for a 1990-S No S Dime?

A: In some auctions, a perfect PR70 Deep Cameo specimen has sold for over $20,000. Most high-grade examples (PR69) settle in the $3,500 to $5,000 range.

Q: Can I find a 1990-S dime in my pocket change?

A: It is very unlikely. Proof coins were sold in plastic cases to collectors. While someone might occasionally break a set and spend the coins, they would stand out immediately because of their shiny, mirrored appearance.

Q: Does CoinKnow help with error identification?

A: Yes, CoinKnow provides high-resolution reference images that allow you to compare your coin against known errors, helping you determine if a lack of a mint mark is a genuine error or simply a common Philadelphia strike.