Hello! That's a great question, as many people have these large, interesting coins and wonder about their value. While the provided text points to websites that list values, it doesn't give the specific details, so here's a general guide to what makes an Eisenhower dollar worth more than its one-dollar face value.
For the most part, the common Eisenhower dollars you find in circulation, which are made of a copper-nickel clad composition, are worth only their face value. However, there are a few key things to look out for that can make them much more valuable.
The first major factor is silver content. From 1971 to 1974, the U.S. Mint produced special collector versions of the Eisenhower dollar that are composed of 40% silver. These were struck at the San Francisco Mint and carry an "S" mint mark. They were sold in blue envelopes (for uncirculated versions) and brown boxes (for proof versions). Because of their silver content, these are always worth significantly more than one dollar. The Bicentennial dollars from 1976 with an "S" mint mark were also made in 40% silver for collectors.
Condition is also critical. A regular copper-nickel coin from a common year like 1971 or 1974 is only worth face value if it's worn. But if you have one in pristine, uncirculated condition with no scratches or wear, it can be worth a premium to collectors.
Finally, there are specific key dates and varieties to watch for. The 1973 coins from the Philadelphia (no mint mark) and Denver ("D" mint mark) mints were not issued for circulation and were only sold in official Mint Sets. This makes them much scarcer than other years. Additionally, one of the most famous and valuable varieties is the 1972 Type 2 dollar, which features a slightly different design of the Earth on the reverse side. Any error coins, such as those struck on the wrong planchet or with a doubled die, can also be quite valuable.
So, in short, check for an "S" mint mark for silver, look for coins in exceptionally good condition, and keep an eye out for the 1973 issues and the 1972 Type 2 variety. Happy collecting
