The 1945-S Mercury Dime is worth anywhere from $3 in worn condition to over $1,500 in high-end Mint State grades with Full Band details. Whether you found one in a drawer or inherited a collection, this silver coin is a favorite among everyday Americans for its classic beauty and steady market value.

Condition	Estimated Value
Good to Fine (Circulated)	$3.00 – $5.00
Extremely Fine (About Uncirculated)	$6.00 – $10.00
Uncirculated (MS60 – MS65)	$15.00 – $45.00
High Grade (MS67+)	$150 – $1,500+

Identifying Your 1945-S Mercury Dime and Its Silver Content

The first thing to recognize about your 1945 silver dime is that it isn’t actually a “Mercury” dime. The figure on the front is actually Lady Liberty wearing a winged cap to symbolize freedom of thought, but it looked so much like the Roman god Mercury that the name stuck for over a century. If you are unsure if you have a genuine San Francisco strike, you can use a top coin identifier app to zoom in on the mint mark and confirm its authenticity.

Every 1945-S Mercury Dime is composed of 90% silver and 10% copper. This means that even if the coin is heavily scratched or worn down to a flat disc, it will always be worth at least its “melt value.” At current silver prices, a single dime contains about 0.07234 ounces of pure silver. For many people, these coins serve as a reliable hedge against inflation.

When you use an app like CoinKnow, you can quickly catalog your finds and see how the silver spot price affects the floor price of your collection. It is one of the easiest ways for beginners to track their inventory.

Understanding the San Francisco Mint Mark (S)

In 1945, the San Francisco Mint produced 58,290,000 dimes. While this sounds like a massive number, it is significantly lower than the output from Philadelphia that same year. To find the “S” mint mark, look at the bottom of the coin’s reverse side (the back). It is located near the rim, to the left of the base of the fasces (the bundle of rods).

The 1945-S is particularly interesting to collectors because of the “Micro S” variety. During production, some coins were struck with an unusually small “S” mint mark that looks like a tiny speck compared to the standard “S” used on other years. Finding a Micro S variant in high grade can significantly increase the 1945 dime value among specialized collectors.

If you are struggling to see the mint mark with the naked eye, a magnifying glass or a high-resolution photo from CoinKnow can help you distinguish between a standard strike and the more desirable varieties.

Variety	Circulated Price	MS65 Price
Standard 1945-S	$3 – $7	$35
Micro S Variety	$10 – $25	$120+

The Importance of the Full Bands (FB) Designation

For Mercury Dime enthusiasts, the ultimate prize is a coin with “Full Bands.” On the reverse of the coin, there is a bundle of rods (fasces) held together by horizontal leather bands. Because the center of the coin is often the hardest area for the metal to flow into during the striking process, these bands are often blurry or merged together.

A 1945-S dime designated as “FB” (Full Bands) by a grading service like PCGS or NGC means that the horizontal lines are clearly separated with no breaks. The price jump for these coins is astronomical. While a standard MS65 1945-S might sell for $40, a version with Full Bands could easily fetch $500 or more.

Checking the crispness of the 1945-S Mercury Dime MS price data reveals that the San Francisco strikes from this year are notoriously mushy. Finding one with sharp details is quite rare, making it a “Condition Rarity” that professional collectors hunt for at auctions.

How to Grade Your 1945 Mercury Dime at Home

Before you run to a coin dealer, you can estimate the grade of your 1945-S Mercury Dime yourself. Grading follows a 1 to 70 scale. For coins found in circulation, you are likely looking at grades between “Good” (G4) and “Extremely Fine” (XF45).

In “Good” condition, the outline of Liberty’s head is visible, but the feathers in her cap are nearly smooth. By the time you reach “Fine” (F12), you should see clear separation in the hair and some detail in the wing feathers. An “Uncirculated” coin (MS60 and above) has no wear from handling and retains its original “mint luster”—that shiny, frosty glow that reflects light in a cartwheel motion.

Using a tool like CoinKnow allows you to compare your coin against high-resolution images of graded specimens. This helps you avoid the disappointment of overestimating a coin’s condition before trying to sell it.

Grade Name	Visual Characteristics	Avg. Value
G-4 Good	Heavily worn; rims flat; date legible.	$2.50
VF-20 Very Fine	Moderate wear; cap feathers distinct.	$4.00
AU-50 About Unc	Traces of wear on high points; lustrous.	$8.00
MS-63 Mint State	No wear; some marks or scratches.	$25.00

Why the 1945-S Is a Great Investment for Beginners

If you are just starting a coin collection, the 1945-S Mercury Dime is an excellent entry point. Because it was the final year of the series, many people at the time saved these coins as souvenirs, meaning a decent supply of mid-grade silver dimes still exists today. Unlike the rare 1916-D or the 1921 keys, the 1945-S is affordable for almost everyone.

However, the “Micro S” variety mentioned earlier adds a fun “treasure hunt” aspect to the hobby. Collectors love searching through rolls of old dimes to find that one error coin that everyone else missed. These small differences in the minting process are what transform a common silver coin into a valuable piece of history.

Whether you are collecting for profit or just for the love of history, holding a piece of 90% silver from the era of World War II is a satisfying feeling. As more of these coins are melted down for their silver content, the surviving examples in good condition will only become more sought after by future generations.

Where to Sell Your 1945-S Mercury Dime

Deciding where to sell your coin depends on its value. If you have a handful of worn 1945-S dimes, a local coin shop is your best bet. They will usually pay “junk silver” prices, which is a percentage of the silver spot price. It is a quick and easy way to get cash in hand.

If your coin is in stunning condition or has the Full Bands designation, you should consider professional grading and selling through an online auction house like Heritage Auctions or eBay. For high-value coins, the “S” mint mark from San Francisco can carry a premium if it has attractive “toning”—a natural oxidation that turns the silver into shades of blue, purple, or gold.

Always do your research and check recent sold listings to ensure you get a fair price. Knowledge is power in the coin world, and being able to identify the specific features of your 1945-S dime is the first step toward a successful sale.

FAQ

Q: Is a 1945-S Mercury dime made of real silver?

A: Yes, all Mercury dimes minted from 1916 to 1945 are made of 90% silver and 10% copper. They do not contain any manganese or nickel like modern dimes.

Q: What is the “Micro S” 1945 dime?

A: The Micro S is a variety where the San Francisco mint mark is noticeably smaller than usual. It was caused by the use of an old puncheon intended for smaller coins or different denominations. It is more valuable than the standard 1945-S dime.

Q: How much is a regular 1945-S Mercury dime worth today?

A: A common, circulated 1945-S dime is generally worth between $3 and $5, largely based on its silver content. If it is in perfect, uncirculated condition, the price can rise to $30 or much higher for “Full Band” examples.

Q: Where is the mint mark on a 1945 Mercury dime?

A: The mint mark is located on the reverse (back) of the coin. Look at the bottom left, near the rim, just outside the wreath and the bundle of rods (fasces). If there is no letter, it was minted in Philadelphia.