If you find a rare coin, handle it carefully without cleaning or polishing it. Research its value and authenticity to determine its rarity.
Consult with a professional numismatist or coin dealer to get an expert opinion on the coin. They can provide insights on its history and market value.
Consider getting the coin graded by a reputable grading service to assess its condition and authenticity. This can add credibility to its value.
Decide whether to keep the rare coin as part of your collection or sell it to a collector or at an auction. Explore different selling options.
Ensure proper documentation of the rare coin, including photographs and any certificates of authenticity or grading. Store it securely to maintain its condition.
Remember that finding a rare coin can be exciting, but it's important to proceed with caution and seek expert advice to make informed decisions.