United States · Dime · 1916–1945
| Country | United States (United States Mint) |
| Denomination | Dime |
| Years struck | 1916–1945 |
| Gross weight | 2.5 g |
| Fine silver (AGW/ASW) | 2.25 g (0.0723 ozt) |
| Composition | 90.0% silver, 10.0% copper |
| Diameter | 17.9 mm |
| Thickness | 1.35 mm |
| Edge | Reeded |
| Designer | Adolph A. Weinman |
The Winged Liberty Head dime — universally called the Mercury dime — was struck from 1916 to 1945 with 0.0723 troy ounces (2.25 g) of silver. Common dates trade as junk silver; the 1916-D is one of the most famous key dates in US coinage.
Liberty wears a winged cap symbolizing freedom of thought, widely mistaken for the Roman god Mercury. The reverse fasces-and-olive-branch design gives the "Full Bands" designation to sharply struck examples.