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The 1927-S Mercury Dime is worth anywhere from $4 in worn condition to over $1,500 in pristine mint state. If you have stumbled upon this San Francisco minted silver coin in an old jar or inherited collection, you are holding a piece of American history that carries a significant premium over its face value.
| Condition / Grade | Estimated Market Value |
|---|---|
| Good (G-4) | $4.50 – $6.00 |
| Fine (F-12) | $15.00 – $25.00 |
| Extremely Fine (XF-40) | $85.00 – $110.00 |
| Uncirculated (MS-60) | $350.00 – $450.00 |
| Choice Uncirculated (MS-65) | $1,200.00+ |
What Makes the 1927-S Mercury Dime So Special?
Finding a Mercury Dime in your spare change is rare today, but finding one with an “S” mint mark from 1927 is a real treat for any amateur collector. To properly identify your find, many people use a top coin identifier app to zoom in on the mint mark and check for specific wear patterns. The 1927-S was struck at the San Francisco Mint, and while it isn’t the rarest date in the series, it is considered a “better date” coin.
The San Francisco Mint produced only 3,960,000 of these dimes in 1927. While that sounds like a large number, it is significantly lower than the Philadelphia minting of the same year. Because many of these coins were used extensively in daily commerce during the late 1920s and through the Great Depression, finding one in high-grade condition is a challenge. Using an app like CoinKnow can help you determine if your coin’s details are sharp enough to warrant a professional appraisal.
Collectors love the “Winged Liberty Head” design, commonly called the Mercury Dime because the portrait resembles the Roman messenger god. However, the designer, Adolph A. Weinman, actually intended it to represent Liberty wearing a Phrygian cap with wings to symbolize “liberty of thought.” This artistic depth, combined with the 90% silver content, makes every 1927-S dime a prized possession for everyday Americans.
Your Old Coin Could Be Valuable!
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Determining the Grade and 1927-S Dime Value
The condition, or “grade,” is the most critical factor in determining how much your coin is really worth. A heavily worn coin that has been jingling in pockets for decades will only be worth a few dollars, mostly for its silver weight. However, as the details of Liberty’s hair and the feathers on her cap become clearer, the price begins to climb exponentially.
Your Old Coin Could Be Valuable!
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When evaluating your silver dime, professional collectors look at the horizontal bands on the fasces (the bundle of rods) on the reverse side. If the bands are fully separated with a clear line between them, the coin is designated as “Full Bands” (FB), which can triple the value. You can find detailed 1927-S Mercury Dime price trends for MS grades on specialized valuation sites to see how much of a premium these details command.
For those who aren’t experts, comparing your coin to high-resolution photos is a great start. If the coin still has its original “mint luster”—that shiny, satiny look it had when it first left the mint—you might be looking at a several-hundred-dollar payout. Using CoinKnow allows you to snap a photo and instantly compare your coin’s appearance to graded specimens in a database, making it easier to spot valuable “mint state” examples.
Your Old Coin Could Be Valuable!
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| Condition Category | Key Identification Features |
|---|---|
| Good (G-4) | Letters and date are visible but worn. Liberty’s head is a flat outline. |
| Fine (F-12) | Moderate wear. Some hair detail and the wing feathers are starting to show. |
| Extremely Fine (XF-40) | Light wear on high points. Most wing feathers and hair strands are distinct. |
| Uncirculated (MS-60+) | No sign of wear. Original factory shine is present across the entire surface. |
The Impact of the “S” Mint Mark on Price
The “S” mint mark is small but carries a lot of weight in the numismatic world. You can find it on the reverse of the coin, located at the bottom near the rim, to the left of the fasces. In 1927, Philadelphia (no mint mark) produced over 28 million dimes, while Denver (D) produced 4.8 million. The San Francisco (S) mintage was the lowest of the year at 3.9 million.
Because of this lower mintage, the 1927-S is much harder to find in circulation than the Philadelphia version. Even in lower grades, it carries a premium of about 50-100% over a 1927 Philadelphia dime. If you are curious about how this compares to other years, looking up a comprehensive 1927 Mercury Dime value chart will show you the stark difference between the mint locations.
If you find a dime that doesn’t have an “S” or a “D” on the back, don’t be disappointed. While the 1927-P is more common, it is still a 90% silver coin that holds historical value. However, the 1927-S remains the “key” for that particular year, often acting as a bridge between common dates and the ultra-rare keys like the 1916-D.
Your Old Coin Could Be Valuable!
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Where to Sell Your 1927-S Silver Dime
If you’ve determined that your coin is in good shape using CoinKnow, your next question is likely where to sell it. For everyday Americans, the easiest route is a local coin shop. Local dealers will usually offer you a price based on the current “wholesale” market. This means you will get paid quickly, but you might not get the absolute top dollar.
For coins that appear to be in “About Uncirculated” or “Mint State” condition, professional grading through services like PCGS or NGC is often recommended. A certified 1927-S dime can sell for hundreds or even thousands at public auctions. Online marketplaces like eBay are also popular, but you should be wary of fees and shipping risks when dealing with high-value silver coins.
Always check the current “spot price” of silver before selling. While the 1927-S has significant collector value, its “melt value” provides a guaranteed floor for its worth. Even if the coin is bent or scratched, a 1927-S Mercury Dime contains approximately 0.0723 ounces of pure silver, ensuring it is always worth much more than ten cents.
Your Old Coin Could Be Valuable!
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| Selling Method | Pros | Cons |
|---|---|---|
| Local Coin Shop | Immediate cash, Expert advice | Lower offer price (Wholesale) |
| eBay / Online | Reach more buyers, Higher price | Shipping risks, Selling fees |
| Heritage Auctions | Highest potential price | Only for high-grade/rare coins |
Common Errors and Variations to Look For
While the 1927-S doesn’t have a famous “doubled die” like some other years, collectors still look for minor strike errors that could increase the value. Misaligned dies or small “clamshell” lamination errors are sometimes found on these late-1920s San Francisco strikes. Because the San Francisco mint often used their dies for as long as possible, you may also see “die cracks”—fine raised lines on the coin’s surface.
Another thing to watch for is “Type 1” vs “Type 2” characteristics, though this is more applicable to other series; for the Mercury Dime, the focus remains on the “Full Bands” designation. If your 1927-S looks particularly “mushy” or the details aren’t sharp, it might just be a late-stage die state, which is common for S-mint coins of this era.
Before you clean your coin—DON’T! Many people think a shiny coin is worth more, but in the coin collecting world, cleaning a coin with chemicals or clothes can destroy its value. A 1927-S with original, dark “toning” is often preferred by collectors over a coin that has been scrubbed bright. Natural aging produces beautiful patinas that prove the coin hasn’t been tampered with.
FAQ
Q: Is the 1927-S Mercury Dime made of real silver?
A: Yes, all Mercury Dimes minted between 1916 and 1945 are composed of 90% silver and 10% copper. This gives them intrinsic value regardless of their condition.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
Q: Where is the mint mark on a 1927-S dime?
A: The “S” mint mark is located on the reverse side (the back) of the coin. Look at the bottom, just to the left of the base of the torch/fasces. If there is no letter, it was made in Philadelphia.
Q: How can I tell if my 1927-S dime is a “Full Bands” coin?
A: Look at the center of the fasces on the back. There are two horizontal bands holding the bundle together. If there is a clear, uninterrupted line separating the two bands, it is a “Full Bands” coin, which is significantly more valuable to collectors.
Q: Is it worth getting my 1927-S Mercury Dime professionally graded?
A: It depends on the condition. If your coin looks brand new (Uncirculated), it is definitely worth the $30-$50 grading fee, as it could be worth $400 or more. If the coin is heavily worn, the grading fee will likely cost more than the coin is worth.