Whenever you decide to start a collection, it is essential to know that these silver coins were produced for nearly 30 years, from 1916 to 1945. For instance, the Winged Liberty Head dime, more commonly referred to as the Mercury dime, is regarded by many coin collectors as one of the most exquisite coins ever produced. For more than 200 years, the US Mint has created American coins, some of which are extremely prized.