DB Sales Proudly Presents. PCGS MS70 2018-Mo Mexican. 999 Silver 1 Oz Libertad Onza Antique Finish Key Date. Mintage limited to 40,000 pieces. PCGS MS70 Population is 937 pieces. Thank you for looking. The product is a PCGS MS70 2018-Mo Mexican. 999 Silver 1 Oz Libertad Onza with an antique finish. This coin is of high quality and has been certified by PCGS, adding value and authenticity. The coin originates from Mexico, has a composition of 0.999 silver, and is part of the historical period of Mexico. With a denomination of 1 oz, this key date coin is a desirable addition to any collection or investment portfolio.