The provided search results indicate relevant sources for determining coin values, such as Greysheet for Eisenhower Dollars, but do not contain the specific price data needed to answer the question. Therefore, the following information is based on established numismatic knowledge.
The value of a 1971 dollar coin, known as the Eisenhower dollar, is critically dependent on its metallic composition and mint of origin. A common misconception is that all 1971 dollars are made of silver. In fact, the vast majority were produced for circulation using a copper-nickel clad composition and contain no silver at all. These coins, minted in Philadelphia (no mint mark) and Denver (D mint mark), are typically only worth their face value of one dollar if they show signs of circulation. In pristine, uncirculated condition, their value may increase to a few dollars.
The "silver dollars" from 1971 were special collector's editions struck at the San Francisco Mint (S mint mark). These coins are composed of 40% silver and were issued in two distinct formats: an uncirculated version, often called a "Blue Ike" due to its original blue envelope packaging, and a proof version with a mirror-like finish, which was sold in a brown box.
The baseline value for these 40% silver coins is their intrinsic silver melt value, which fluctuates daily with the market price of silver. Beyond the melt value, they carry a numismatic premium that depends on their condition. A typical uncirculated 1971-S Eisenhower dollar often trades for a value between $10 and $15, while a proof version from the same mint might be valued slightly higher, in the $12 to $18 range. Values can increase significantly for coins that have been professionally graded and are in exceptional condition. Therefore, identifying the mint mark is the first and most crucial step in determining the coin's potential worth.
