The 1971-S Eisenhower Proof Silver Dollar had a mintage of just 4,265,234. The composition of these coins is 60% copper and 40% silver. The diameter is 38.1mm. The mint marks for Denver and San Francisco mints are located on the obverse beneath Eisenhower's bust. The Philadelphia mint mark was omitted as with many other coins produced by the U.S. Mint. The proof coin is a special collector version that has been struck using a high quality minting process often resulting in mirror like fields and frosty devices. Each of these Eisenhower Dollars are in Gem Proof condition.