Coin Identifier
Mercury Dime
United States

Mercury Dime

Popular U.S. dime nicknamed for its winged Liberty head, mistaken by many for the Roman god Mercury, designed by Adolph A. Weinman and struck from 1916 to 1945.

Country
United States
Denomination
Ten Cents
Metal
90% Silver, 10% Copper

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Overview

The Mercury Dime is one of the most admired small-denomination U.S. coins, prized for its elegant Art Nouveau-influenced design and its popular nickname, even though it does not actually depict the Roman god Mercury. It circulated through both World Wars and the Great Depression before being replaced by the Roosevelt Dime.

Its fasces reverse, symbolizing unity and strength, along with its artistic obverse, make it a favorite among type collectors and those building full date-and-mintmark sets.

History & Background

Introduced in 1916 alongside the Walking Liberty Half Dollar and Standing Liberty Quarter as part of a broader redesign of U.S. silver coinage, the dime was designed by sculptor Adolph A. Weinman, replacing the long-running Barber dime. The obverse depicts Liberty wearing a winged cap meant to symbolize freedom of thought, but the public quickly nicknamed the coin "Mercury" due to its resemblance to the winged-helmeted Roman messenger god.

The design remained in production through 1945, spanning the Great Depression and World War II, before being replaced in 1946 by the Roosevelt Dime, created to honor President Franklin D. Roosevelt shortly after his death, partly in recognition of his association with the March of Dimes.

How to Identify

The obverse shows Liberty's head in profile wearing a winged Phrygian cap, with "LIBERTY" around the upper rim and "IN GOD WE TRUST" to the lower left. The reverse depicts a fasces (a bundle of rods bound around an axe, an ancient symbol of authority and unity) wrapped with an olive branch, alongside the denomination and "UNITED STATES OF AMERICA E PLURIBUS UNUM."

The coin measures 17.9 mm in diameter and weighs 2.5 grams in 90% silver, with a reeded edge. Mint marks (D or S) appear on the reverse near the base of the fasces, to the left of the olive branch; Philadelphia coins carry no mint mark. Fully struck examples show a clear horizontal split in the bands wrapping the fasces, known as "Full Bands," a key factor for advanced collectors.

Value & Collectibility

Most Mercury Dimes are affordable, especially common dates from the 1930s and 1940s, often available near silver bullion value in worn grades. The undisputed key date of the series is the 1916-D, struck in a very low mintage at the Denver Mint, which commands substantial premiums even in heavily worn condition.

Other scarcer issues, including certain 1921 and 1921-D dates, and well-struck "Full Bands" examples of otherwise common dates, can carry notable premiums. As with many classic U.S. series, sharpness of strike and eye appeal significantly affect value beyond the base date-and-mintmark rarity.

Frequently asked questions

Does the Mercury Dime actually show the god Mercury?

No, it depicts Liberty wearing a winged cap symbolizing freedom of thought; the nickname arose from its visual resemblance to depictions of Mercury.

What is the key date for Mercury Dimes?

The 1916-D, struck at the Denver Mint in a very limited quantity, is the classic key date of the series.

What does 'Full Bands' mean?

It refers to a fully struck fasces on the reverse where the horizontal bands are clearly separated, indicating an exceptionally well-struck coin that often commands a premium.

When was it replaced?

Production ended in 1945, and the design was replaced in 1946 by the Roosevelt Dime.