CoinValueDB
Obverse of 1918 S Mercury Dime

Obverse

Reverse of 1918 S Mercury Dime

Reverse

1918 S Mercury Dime

$4 – $510

The 1918 S Mercury Dime was minted at the San Francisco Mint with a mintage of 19,300,000. Values range from $4 in lower grades to $510 in top condition.

1918 | S | Mintage: 19,300,000
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Market Activity

2 recent sales
SoldHigh BidFor SaleLast Asking PriceMoving Average
Avg: $188 High: $2,150 Low: $0.82 2 sales 22 total data points

CoinValueDB Price Guide by Grade

CoinValueDB Price Guide by Grade
GradeValue
Good (G-4)
$8
Very Good (VG-8)
$5
Fine (F-12)
$12
Very Fine (VF-20)
$6
Extremely Fine (EF-40)
$20
About Uncirculated (AU-50)
$12
Mint State (MS-60)
$44
Choice (MS-63)
$80
Near Gem (MS-64)
$200
Gem (MS-65) Best Value
$203
Superb Gem (MS-66)
$425
Superb Gem+ (MS-67)
$1,330
Under $100 $100 - $1,000 Over $1,000

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Coin Specifications

Year
1918
Mint
S
Mintage
19,300,000
Composition
90% Silver, 10% Copper
Weight
2.5
Diameter
17.91
Edge
Reeded
Designer
Adolph A. Weinman
Series
Mercury Dime (1916-1945)
PCGS #
4908

About the Mercury Dime

The Mercury Dime series ran from 1916 to 1945. Adolph A. Weinman designed the coin after winning a 1915 competition held by the Commission of Fine Arts. The obverse features Liberty wearing a winged Phrygian cap, which led the public to mistake her for the Roman god Mercury. The reverse depicts a fasces, a bundle of rods with an axe, meant to symbolize unity and strength. Weinman chose the winged cap to represent freedom of thought. The Mint replaced the Barber dime with this design to modernize American coinage. The series ended in 1945 when the Mint introduced the Roosevelt dime to honor the late president. You hold a piece of history that circulated through two World Wars and the Great Depression.

Collecting Mercury Dime Coins

Start your collection with common dates from the 1940s, as these are affordable and easy to find in decent condition. Look for full horizontal lines on the fasces, known as Full Bands, because these command higher prices. Avoid coins with heavy scratches or harsh cleanings. Be wary of the 1916-D dime, as counterfeiters often add a D mint mark to common 1916 Philadelphia coins. Use a magnifying glass to check the mint mark for signs of tooling or uneven placement.

This series includes key dates — check individual coin pages for rarity details.

Frequently Asked Questions

What is a 1918 S Mercury Dime worth? +
A 1918 S Mercury Dime is worth between $4 and $510 depending on condition. Coins in higher grades (MS-65 and above) command significant premiums.
How many 1918 Mercury Dime coins were made? +
The San Francisco Mint produced 19,300,000 1918 Mercury Dime coins. Lower mintage numbers generally correlate with higher collector value.
Is the 1918 S Mercury Dime a key date? +
The 1918 S Mercury Dime is not considered a key date or semi-key date. However, condition is always important. A common-date coin in exceptional condition can still be quite valuable.
How much is a 1918-S Mercury Dime worth? +
In circulated condition, this coin is worth its silver content, which is approximately $1.50 to $2.00. Uncirculated examples sell for $50 to over $500 depending on the specific grade and eye appeal.
Is the 1918-S Mercury Dime considered rare? +
The 1918-S Mercury Dime is not rare. Its mintage of 19,300,000 makes it a common date compared to the scarce 1916-D or 1921 issues in the same series.

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