The 1931-S Mercury Dime is worth anywhere from $10 in worn condition to over $350 in choice mint state. This San Francisco minted classic is a fan favorite among collectors because of its low mintage and historical significance during the early years of the Great Depression.
| Condition / Grade | Estimated Market Value |
|---|---|
| Good (G-4) | $8 – $10 |
| Fine (F-12) | $15 – $18 |
| Extremely Fine (XF-40) | $35 – $45 |
| Uncirculated (MS-60) | $110 – $130 |
| MS-65 Full Bands (FB) | $450 – $600+ |
History and Significance of the 1931-S Winged Liberty Head Dime
If you’ve just found an old dime with a figure wearing a winged hat, you aren’t looking at the Roman god Mercury, even though that’s the common name. You are holding a Winged Liberty Head dime, designed by Adolph A. Weinman. Finding one dated 1931 from the San Francisco mint is a special treat. During the height of the Great Depression, the demand for new coinage plummeted because people simply didn’t have money to spend. As a result, the mintage numbers for 1931 are significantly lower than the years preceding the stock market crash.
To find out exactly what you have, many enthusiasts use the best coin identifier app to instantly recognize the date and mint mark. The San Francisco mint produced only 1.8 million of these dimes in 1931. While that might sound like a lot, it is quite small compared to the 20 million or 30 million produced in other years. This “semi-key date” status makes the 1931-S a targeted piece for anyone trying to complete a Mercury Dime set. Using tools like CoinHix can help you stay updated on how these historical factors influence today’s market prices.
When you examine your coin, look closely at the reverse side next to the olive branch and fasces. You will see a small ‘S’ if it was minted in San Francisco. If there is no letter, it’s from Philadelphia; a ‘D’ means it’s from Denver. The 1931-S sits in a sweet spot of affordability and rarity, making it a great entry point for new collectors who want a coin with real history.
Detailed 1931-S Mercury Dime Value Guide
The value of your 1931-S Mercury Dime is heavily dependent on its “grade,” which is a professional way of describing its physical condition. Because these coins circulated heavily during a time when every penny (or dime) counted, finding one in “Mint State” — meaning it looks like it just came from the bank — is rare. Most 1931-S dimes found in old jars or collections will be in “Good” or “Fine” condition, meaning the hair details on Liberty and the feathers on her cap are worn down.
Even in lower grades, this coin holds value because of its low mintage. A coin in “Good” condition will show a clear rim and date, though most of the internal design is flat. As you move up to “Very Fine” or “Extremely Fine,” the feathers start to show individual lines, and the price begins to climb. For those looking for top-tier specimens, the 1931-S Mercury Dime MS price data shows a significant jump for coins that retain their original mint luster.
It is also worth noting that “Full Bands” (FB) designated coins command a massive premium. This refers to the horizontal bands holding the fasces together on the reverse side. If these bands are fully separated with no blending, the coin is considered a masterpiece of the strike. Most 1931-S dimes have “mushy” strikes, so a Full Band version is a prize that can sell for hundreds or even thousands of dollars at auction.
| Grade Detail | Price Range | Key Features |
|---|---|---|
| About Uncirculated (AU) | $75 – $95 | Trace wear on high points |
| Mint State 63 (MS63) | $150 – $180 | Some marks, full luster |
| Mint State 66 (MS66) | $350 – $425 | Nearly flawless to the eye |
How to Identify 1931-S Mercury Dime Mint Marks and Varieties
Identification is the first step toward getting paid. For the 1931-S, the mint mark is the most critical feature to verify after the date. On a Mercury Dime, the mint mark is located on the reverse (tails) side. Look at the bottom of the coin, just to the left of the base of the fasces bundle. You will see a tiny “S.” If the area is blank, it’s a Philadelphia coin, which has a higher mintage and generally lower value in circulated grades.
One thing to watch out for is “added” mint marks. Because the 1931-S is more valuable than the 1931 Philadelphia, some unscrupulous people in the past may have tried to glue an ‘S’ onto a plain dime. This is why professional grading or using a high-quality app is so important. If you are unsure, CoinHix provides high-resolution images that allow you to compare your coin against known authentic examples.
Besides the mint mark, you should look for “Double Die” errors. While no major, high-value varieties are specifically famous for the 1931-S like they are for the 1942/41 overdate, minor doubling on the date or lettering can still occur. If you find a 1931-S that looks like the numbers are “shadowed” or doubled, you might have a rare variety that is worth a premium to error collectors. Understanding the 1931-S Mercury Dime worth and rarity is essential before you decide to sell or trade your find.
The “Full Bands” Factor in 1931-S Mercury Dime Pricing
For serious collectors, the difference between a $150 coin and a $600 coin often comes down to two tiny horizontal lines. On the reverse of the Mercury Dime, there are three sets of horizontal bands holding the bundle of rods (fasces). The middle set of bands is often the most weakly struck. If a coin has “Full Bands” (FB), it means there is a clear, distinct line separating the top and bottom of that middle band with no interruptions.
The 1931-S is notoriously difficult to find with Full Bands. The San Francisco mint during this era often used slightly worn dies or lower pressure, resulting in “flat” details on the reverse. Because of this, a 1931-S with Full Bands is considered a “condition rarity.” Even if two coins are both technically “Uncirculated,” the one with the FB designation will always command a much higher price at auction.
If you think your coin has this feature, it is worth having it professionally graded by services like PCGS or NGC. A certified Full Bands 1931-S is a liquid asset that collectors will compete for. Before spending money on grading fees, you can use CoinHix to get a preliminary assessment of your coin’s strike quality and see if it meets the criteria for this elusive and valuable designation.
| Grade | Non-FB Value | Full Bands (FB) Value |
|---|---|---|
| MS-63 | $165 | $250 |
| MS-65 | $285 | $550 |
| MS-67 | $850 | $2,200+ |
Selling and Collecting the 1931-S Mercury Dime
If you have determined that your 1931-S Mercury Dime is in good condition, you might be wondering where to sell it. For coins in lower grades (Good to Fine), your local coin shop is often the best bet. They will likely pay you a percentage of the “Grey Sheet” (wholesale) price. However, if your coin is in Extremely Fine condition or better, you might consider online auctions or specialized coin forums where collectors are willing to pay closer to retail value.
When collecting Mercury Dimes, the 1931-S is often one of the last coins added to a “short set” because it is harder to find than the 1940s dates. It represents a time in American history when the economy was struggling, and fewer people could afford to save coins. This makes every surviving 1931-S a little piece of Depression-era history.
Always remember to handle your coins by the edges. Even a 1931-S shouldn’t be cleaned with chemicals or cloths, as this can strip away the “patina” that collectors love. A cleaned coin can lose 50% or more of its value instantly. Instead, keep it in a PVC-free plastic holder or a cardboard “2×2” to preserve its condition and its value for the future.
FAQ
Q: Why is the 1931-S Mercury Dime more valuable than others?
A: The 1931-S is valuable primarily due to its low mintage of 1.8 million coins. During the Great Depression, the mint produced fewer dimes, making this date harder to find today than common dates from the 1940s.
Q: Where is the mint mark on the 1931-S Mercury Dime?
A: The mint mark is located on the reverse (tails) side of the coin. Look at the very bottom, just to the left of the base of the fasces (the bundle of rods). An “S” indicates it was made in San Francisco.
Q: Should I clean my 1931-S Mercury Dime to make it look better?
A: No! Never clean your coins. Cleaning causes microscopic scratches and removes the original surface finish, which drastically reduces the coin’s value to collectors. Even if it looks “dirty,” it is better to leave it in its original state.
Q: How can I tell if my 1931-S has “Full Bands”?
A: Look at the middle set of horizontal bands on the reverse. If there is a clear, deep line separating the two bands across the entire width of the fasces, it may qualify for the Full Bands (FB) designation, which significantly increases the price.