Ahoy matey! Based on the search results, it looks like your best options to sell one of those commemorative coins would be either on World Encyclopedia Of Coins And Coin Collecting (R471) or Public Auction - The Robert S. Williams Collection Of Rare Coins Medals Tokens Curios Stamps Paper Money Etc. Etc. On Friday And (R605). The encyclopedia would help you learn more about properly identifying and grading the coin to attract interested collectors. And the auction catalog suggests your coin may fetch a nice price if offered to other aficionados. Fair winds in your coin-selling ventures!