How do you clean an Eisenhower dollar?

Cleaning an Eisenhower dollar, or any collectible coin, is generally not recommended as it can diminish its value and alter its surface. If cleaning is absolutely necessary, use a soft, lint-free cloth to gently wipe the coin, avoiding any harsh chemicals or abrasives. For more thorough cleaning, you can soak the coin in a mild solution of distilled water and a few drops of soap for a short time, then rinse and dry it carefully. Always handle coins by the edges to prevent fingerprints and further damage.