2006 Proof American Silver Eagle 1 oz coin. The American Silver Eagle is considered by many to be the most beautiful coin in production today. It takes its design directly from one of the most popular and iconic coins in U.S. history, Adolph A. Weinman’s Walking Liberty half-dollar of 1916-1947. Lady Liberty is depicted striding confidently toward a rising sun, draped in the security of the American flag, and carrying laurel and oak branches that symbolize American civic and military power. The reverse of the coin features a new design created expressly for the American Silver Eagle by John Mercanti, the chief engraver at the U.S. Mint. It depicts a proud heraldic eagle placed directly beneath thirteen stars representing the original thirteen colonies.