1986-Mo Mexico Silver Libertad 1 Onza PCGS MS-67. Precious Metal Content per Unit. Total Precious Metal Content. The coin displays contact marks, light toning, and there are some minor scratches on the plastic PCGS holder. If you have questions about this item please send us a message. In the event of a listing error (such as a duplication) we reserve the right to cancel the order. We are only responsible for a GSP item until it is delivered to the U. We guarantee all items to be genuine. Find More Like This.