The 1918-S Buffalo Nickel is worth anywhere from $15 in heavily worn condition to over $15,000 for rare, high-grade mint state specimens. Whether you found one in a grandfather’s jar or inherited a collection, this San Francisco-minted coin is a classic piece of American history with significant collector demand.

Condition	Estimated Value
Good (G-4)	$15 – $20
Fine (F-12)	$45 – $65
Extra Fine (EF-40)	$150 – $220
Uncirculated (MS-63)	$1,100 – $1,800
Gem Mint (MS-65)	$15,000+

Historical Background of the 1918-S Buffalo Nickel

The 1918-S Buffalo Nickel belongs to a series officially known as the “Indian Head Nickel,” designed by the famous sculptor James Earle Fraser. Released during the final year of World War I, this coin was minted at the San Francisco facility. Identifying this coin is simple: look for the “S” mint mark on the reverse side (the buffalo side), located just below the “FIVE CENTS” inscription.

If you are unsure whether your coin is a genuine San Francisco strike, using a top coin identifier app can help you zoom in on the mint mark and confirm its origin. In 1918, the San Francisco Mint produced 4,882,000 of these nickels. While that sounds like a large number, it is actually quite low compared to the Philadelphia Mint’s production of over 32 million.

This scarcity is exactly why the 1918-S Buffalo Nickel is considered a “semi-key date” in the series. Most of these coins entered heavy circulation, meaning they were passed from hand to hand for decades. Because the date on Buffalo Nickels was placed on a raised area of the design, it tended to wear away quickly. Finding one with a clear, readable “1918” and an “S” on the back is a win for any casual hunter. CoinKnow users often report that the strike quality on the 1918-S is notoriously weak, making well-defined examples even more valuable to collectors.

Understanding the Grade and Condition Impact

When determining the value of your 1918-S Buffalo Nickel, condition is everything. Numismatists use a 70-point scale to grade coins. For an everyday person, the most important thing to look at is the horn of the buffalo on the reverse and the braid of the Native American on the obverse. If the horn is completely gone and the date is barely visible, the coin is in “Good” condition.

If you can see a partial horn and the date is bold, you might have a “Fine” or “Very Fine” coin. The leap in price between a worn coin and a crisp, uncirculated one is massive. For example, 1918-S Buffalo Nickel mint state prices show that as soon as a coin retains its original mint luster, the value jumps into the thousands of dollars.

Most people find coins in “Circulated” condition. Even so, the 1918-S remains one of the more expensive dates to acquire for a complete folder. If you have a version that looks shiny and “new,” avoid touching the surfaces with your fingers. The natural oils on your skin can damage the metal and lower the grade. Using CoinKnow can help you compare your coin against high-resolution images of graded coins to see where yours fits on the scale.

Current Market Value and Pricing Guide

The market for Buffalo Nickels is currently very strong. Collectors love the “Old West” aesthetic of these coins, and the 1918-S is a frequent target for those trying to complete a collection. Prices fluctuate based on auction results and collector demand, but the 1918-S generally holds its value better than common dates like the 1936 or 1937.

Grade Detail	Visual Markers	Price Range
G-4 (Good)	Date is readable but faint; rims are worn.	$15 – $25
VF-20 (Very Fine)	Half of the buffalo’s horn is visible.	$85 – $110
XF-40 (Extremely Fine)	Only slight wear on the highest points.	$160 – $240
AU-50 (About Uncirculated)	Traces of mint luster still present.	$350 – $500

For those looking for more detailed data, checking the 1918 Buffalo Nickel price guide will reveal that even with slight damage like scratches or cleaning, these coins still command a premium over common nickels. Always remember that a “raw” coin (one not in a plastic holder from a grading service like PCGS or NGC) usually sells for slightly less than a “certified” coin because the buyer is taking a risk on the grade.

The Rare 1918/7-D Overdate Variety

While we are focusing on the 1918-S, it is vital to mention its cousin: the 1918/7-D overdate. This is one of the most famous error coins in American history. It happened when a 1917 hub was impressed with a 1918 hub. While this error is only found on Denver (“D”) minted coins, many people searching for 1918 nickels often get confused.

If you happen to find a 1918 nickel with a “D” mint mark, look closely at the “8” in the date. If there is a faint “7” visible underneath the “8,” you have found a coin worth thousands, even in poor condition. The 1918-S does not have a documented overdate variety, but it is known for another issue: “lamination errors.” These are cracks or peels in the metal caused by poor alloy mixing at the San Francisco mint.

CoinKnow can be a great tool if you think you’ve found an error. By searching the app’s database for “1918 Buffalo Nickel errors,” you can see if your coin’s imperfections are actually valuable mint errors or just “post-mint damage” (like being hit by a lawnmower or corroding in the dirt). Generally, a clean 1918-S with a sharp strike is more desirable than one with minor planchet flaws.

How to Identify a Genuine 1918-S Buffalo Nickel

With the rise in coin values, counterfeits have become more common. To ensure your 1918-S is the real deal, first check the weight. A standard Buffalo Nickel should weigh 5.0 grams. If it is significantly lighter or heavier, it may be a fake made of different metals. Furthermore, look at the “S” mint mark under a magnifying glass.

The “S” should have a specific shape and should not look like it was glued on. Sometimes, deceptive people will take a common 1918 Philadelphia nickel and “add” an S. This is known as an “added mint mark.” You can usually spot this by looking for a tiny seam or line around the letter. Professionals use high-powered microscopes to verify this.

Another thing to look for is the “Designer’s Initial.” On the obverse side, just below the date, there is a small “F” for Fraser. If this is missing on a coin that isn’t heavily worn, it’s a big red flag. Fortunately, 1918-S nickels are not as commonly faked as the 1916-D Mercury Dime, but it is always better to be safe. If you have a high-grade example, getting it professionally graded is the only way to guarantee its authenticity and maximize its resale value.

Why the San Francisco Mint Mark Matters

In the early 20th century, the San Francisco Mint often produced the lowest number of coins compared to Philadelphia and Denver. This “S” mint mark acted as a stamp of scarcity. During the Great Depression and the years following WWI, fewer coins were minted because the economy didn’t need as much change in circulation.

Mint Location	Mintage Number	Survival Rate Estimate
Philadelphia (No Mark)	32,086,314	High
Denver (D)	8,362,000	Moderate
San Francisco (S)	4,882,000	Low

Because the 1918-S has a mintage under 5 million, it is naturally harder to find. When you combine this low mintage with the fact that these coins were workhorses in the American economy, you end up with a very small number of surviving coins in high grade. This supply-and-demand dynamic is what drives the prices above $1,000 for uncirculated pieces. If you’re a beginner, keep an eye out for any “S” mint Buffalo nickel from the 1910s and 1920s—they are almost always worth more than their face value.

FAQ

Q: Where is the mint mark on a 1918 Buffalo Nickel?

A: The mint mark is located on the reverse side of the coin. Look at the bottom, just below the words “FIVE CENTS” and above the rim. If you see an “S”, it was minted in San Francisco. If you see a “D”, it’s from Denver. No letter means it was minted in Philadelphia.

Q: Why is my 1918-S Buffalo Nickel so blurry or flat?

A: This is common for the 1918-S. The San Francisco Mint used dies that were often overused or improperly spaced, resulting in “weak strikes.” Even a coin with no wear can sometimes look a bit flat in the details, which is why “sharp” strikes are so valuable.

Q: Can I find a 1918-S Buffalo Nickel in my pocket change?

A: It is extremely rare but not impossible. Buffalo Nickels were replaced by the Jefferson Nickel in 1938. While most have been pulled from circulation by collectors, “re-entry” happens when old collections are spent or stolen. Most “Wild” finds are heavily worn.

Q: Is it worth getting a 1918-S Buffalo Nickel graded?

A: Generally, it is only worth professional grading (PCGS/NGC) if the coin is in “About Uncirculated” (AU) condition or better, or if you suspect it is a high-grade error. If the coin is worn and worth $20, the $50+ cost of grading would be more than the coin is worth.

Q: How should I clean my 1918-S Nickel to make it worth more?

A: Never clean your coins! Cleaning a rare coin with polish, soap, or even a soft cloth can leave microscopic scratches that collectors hate. A “cleaned” coin can lose 50% or more of its market value instantly. Keep it in its original, found condition.