Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
The 1991-S Roosevelt Dime is worth anywhere from $3 in typical proof condition to over $500 for perfect specimens with deep cameo contrasts. While you won’t find these in your pocket change, discovering one in an old collection can be a rewarding experience for any casual collector.
| Condition / Grade | Estimated Value |
|---|---|
| PR 65 (Standard Proof) | $3.00 – $5.00 |
| PR 69 Deep Cameo | $12.00 – $20.00 |
| PR 70 Deep Cameo (Perfect) | $350.00 – $550.00 |
Identifying the 1991-S Roosevelt Dime
If you have stumbled upon a shiny dime dated 1991 with a small “S” mint mark, you are looking at a Proof coin produced at the San Francisco Mint. Unlike the “P” or “D” dimes you use at the vending machine, these were specifically struck for collectors. If you aren’t sure what you have, using a top coin identifier app can help you distinguish between a standard business strike and a specialized proof.
Most Americans find these coins in purple or blue plastic velvet cases known as “Proof Sets.” Because the San Francisco Mint did not produce 1991 dimes for general circulation, any “S” mint mark dime found in a coin jar is likely a “breakout” from a set. These coins feature mirrored backgrounds and frosted foregrounds, a technique known as “Deep Cameo.”
To get an accurate sense of the market, you can check the current average 1991 Roosevelt Dime auction prices to see how the “S” mint stacks up against its Philadelphia and Denver counterparts. Generally, the CoinKnow app is a great secondary tool to verify these mint marks quickly.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
The Mirror-Like Surface of Proof Coins
The 1991-S Roosevelt Dime is unique because of the way it was manufactured. The San Francisco Mint uses polished planchets (the metal discs) and specially treated dies. This creates a “cameo” effect where President Franklin D. Roosevelt’s portrait looks white and frosted, while the field behind him looks like a dark, polished mirror.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
When assessing the value, collectors look for “haze” or scratches. Even though these coins were protected in plastic cases, air can leak in over decades, causing the copper-nickel surface to turn cloudy or develop spots. A perfectly clear, “Deep Cameo” 1991-S dime is the goal for any serious collector.
If your coin has even a tiny scratch, its value drops significantly. This is why many people use CoinKnow to zoom in on the details of the torch, olive branch, and oak branch on the reverse side. The clearer the details, the higher the grade.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
| Mint Mark | Production Type | Rarity Level |
|---|---|---|
| P (Philadelphia) | Business Strike (Circulation) | Very Common |
| D (Denver) | Business Strike (Circulation) | Very Common |
| S (San Francisco) | Proof Strike (Collector) | Lower Mintage |
Why Condition Dictates Price
In the world of coin collecting, the difference between a $5 coin and a $500 coin often comes down to things the naked eye can barely see. This is especially true for the 1991-S Roosevelt Dime. Professional grading services like PCGS or NGC use a 70-point scale. A “PR69” (Proof 69) is nearly perfect, while a “PR70” is absolutely flawless.
For the 1991-S, there are thousands of PR69 specimens available. Because they are so common, they only trade for a few dollars. However, the 1991 Roosevelt Dime price guide shows a massive jump for those rare coins that achieve the perfect PR70 grade. These perfectionist pieces are what high-end investors hunt for.
If you have a 1991-S dime that has been handled by human hands, it has likely lost its “Deep Cameo” status. Fingerprint oils are acidic and can permanently etch the surface of a proof coin. Always handle these by the edges or wear cotton gloves if you want to preserve their value.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
Mintage Numbers and Scarcity
In 1991, the San Francisco Mint struck approximately 2,867,787 Proof Roosevelt Dimes. While nearly 3 million might sound like a lot, it is a tiny fraction of the hundreds of millions of dimes struck in Philadelphia and Denver that same year. This relative scarcity is what gives the 1991-S its base value.
Most of these coins remained in their original 1991 Proof Sets. If you find a complete set, it also includes the penny, nickel, quarter, and half dollar. A full set usually sells for $10 to $15. Breaking the dime out of the set is only worth it if the coin is an absolute “monster”—meaning it has incredible eye appeal and looks like a candidate for a perfect 70 grade.
Using the CoinKnow app can help you compare your coin’s luster to known high-grade examples. Many everyday people find that their “shiny” dime is actually just a high-grade circulation coin from Denver, making it worth face value rather than the collector premium of the “S” mint mark.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
| Strike Type | Mintage Quantity | Average Value |
|---|---|---|
| 1991-P Business | 775,299,103 | $0.10 – $0.25 |
| 1991-D Business | 753,163,510 | $0.10 – $0.25 |
| 1991-S Proof | 2,867,787 | $3.00+ |
Modern Errors and Variations
While the 1991-S is mostly known for its proof finish, error hunters often look for specific anomalies. Common errors in the Roosevelt series include “doubled dies,” where the lettering looks like it was stamped twice. Another rare occurrence is the “No S” error, though the most famous version of this happened in 1990, not 1991.
Still, it is worth looking at your 1991-S dime under a magnifying glass. Check the “JS” initials near the base of Roosevelt’s neck (standing for John Sinnock, the designer). If the letters look blurry or doubled, you might have a variety that collectors would pay a premium for beyond the standard proof price.
Even if you don’t find a major error, the 1991-S is a beautiful piece of American history. It represents the transition of the US Mint into more advanced proofing technologies that resulted in the high-contrast coins we see today. Whether it’s worth $5 or $500, it’s a treasure worth keeping.
| Potential Error Name | What to Look For | Value Factor |
|---|---|---|
| Double Die Obverse | Doubling in “IN GOD WE TRUST” | High Premium |
| Off-Center Strike | Design not centered on the coin | Variable |
| Die Polish Lines | Fine scratches from the minting tool | Low Premium |
FAQ
Q: Is the 1991-S dime made of silver?
A: No. Unlike dimes made in 1964 and earlier, the 1991-S Roosevelt Dime is composed of a copper-nickel “clad” sandwich. The US Mint did not start producing silver proof sets again until 1992, so all 1991 dimes are base metal.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
Q: How can I tell if my 1991 dime is a “Proof”?
A: Look for the “S” mint mark. Additionally, proof coins have a distinct shiny, mirror-like background. If you can see your reflection clearly in the flat parts of the coin, it is likely a proof strike.
Q: Can I find a 1991-S dime in my pocket change?
A: It is very rare but possible. Occasionally, someone will break open a proof set and spend the coins at face value. If you find one, it will likely be “impaired,” meaning it has scratches and circulation wear, which reduces its value to about $1-$2.
Q: What is the most expensive 1991-S dime ever sold?
A: High-grade specimens in perfect PR70 Deep Cameo condition have sold at major auctions for over $500. However, the average one you find in a proof set is typically worth around $3 to $5.