For sale is a. MEXICO 1987 ONE OUNCE 999 SILVER LIBERTAD COIN. Please view scan to confirm grade. If you win multiple auctions please wait to pay until I send a combined invoice. Please visit our store in Sun City Summerlin SUN CITY COIN and BULLION. 9330 Sun City Blvd. Las Vegas, NV 89134. We are a FULL SERVICE coin shop. MONDAY – FRIDAY 9:00 – 4:00 PDT.