The 1973 S Eisenhower Proof Brown Box 40% Silver Ike Dollar is an uncirculated coin minted in San Francisco by the United States Mint. This $1 coin features a proof strike type and contains 40% silver fineness. It comes in its original government packaging and is a valuable addition to any coin collection. The Eisenhower Dollar was issued in honor of President Dwight D. Eisenhower, making this coin a unique and historic piece of American currency.