1892-1893 Columbian Expo Silver Half Dollar Coin RingThis coin ring is made from the first United States commemorative coin, it was issued both to raise funds for the 1893 World's Columbian Exposition and to mark the 400th anniversary of Christopher Columbus's first voyage to the Americas. Sales of the commemorative half dollars were less than stellar due in part to the economic "Panic of 1893" which began when the fair opened. Considered one of the worst depressions in the nation's history, fifty cents