Mercury Dime Ring $30.00 The Mercury Dime, also known as the Winged Liberty Head Dime, was a ten-cent coin produced by the United States Mint from 1916 to 1945. Designed by Adolph Weinman, it featured Liberty wearing a winged Phrygian cap, which is often mistaken for the Roman god Mercury. Jewelry › Mercury Dime Ring Size: Select Size 5 6 7 8 9 10 11 Quantity: Add To Cart Added! The Mercury Dime, also known as the Winged Liberty Head Dime, was a ten-cent coin produced by the United States Mint from 1916 to 1945. Designed by Adolph Weinman, it featured Liberty wearing a winged Phrygian cap, which is often mistaken for the Roman god Mercury.