The Mercury Dime had the same specifications as the previous Barber Dime series. The coins have composition of 90% silver and 10% copper, with uncirculated coins containing 0.07234 ounces of pure silver. Each dime has a standard weight of 2.50 grams, or 39 grains, with a diameter of 17.9 mm. Coins have a reeded edge.
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.
Mint Mark: none (Philadelphia), D (Denver), S (San Francisco)
Composition: 90% silver, 10% copper
Weight: 2.50 grams
Diameter: 17.9 mm
Designer: Adolph A. Weinman