The 1989 Mo Mexico Silver 1 oz BU UNC Libertad Onza Coin is a highly sought-after precious metal investment coin minted by the Mexican Mint. This coin contains 1 oz of. 999 fine silver and features the Mexican Libertad design. It is a business strike coin that is ungraded and uncertified, making it a valuable addition to any coin collection or investment portfolio. With its Mexican origin and unique design, this coin holds both numismatic and precious metal value for investors and collectors alike.