The Mercury Dime maintained the same specifications as the prior series with a composition of 90% silver and 10% copper. Each dime has a standard weight of 2.50 grams, diameter of 17.9 mm, and a reeded edge. During the course of the series, coins were struck at the Philadelphia, Denver, and San Francisco Mint facilities. The mintmark for the coins struck at San Francisco and Denver appears on the reverse of the coin near the stem of the olive branch.
Adolph A. Weinman was the designer of the coins. For the duration of the series from 1916 to 1945, there were no updates or modifications to the design. This had often taken place for earlier U.S. coin designs and even some contemporary series. Both the Standing Liberty Quarter and Walking Liberty Half Dollar would undergo modifications after their initial release.
Mercury Dime Coin Specifications
- Dates: 1916-1945
- Designer: Adolph A. Weinman
- Composition: 90% silver, 10% copper
- Diameter: 17.9 mm
- Weight: 2.50 grams
- Edge: reeded
- Mint Mark: none (Philadelphia), “D” (Denver), “S” (San Francisco)
