2018 5 oz Silver BU Coin. LIBERTAD - MEXICO - 2018 5 oz Brilliant Uncirculated Silver Coin. Silver Libertads are Mexico's treasured coins and this 2018 edition continues the beloved series that began in 1982. The classic 5 oz size makes these Silver coins perfect for collecting and investing.Material: Fine Silver (99.99%) Finish: Brilliant Uncirculated Weight: 5 oz Diameter: 65mm Case: No. (WITH THE EXCEPTION OF GOLD COINS). ONCE YOUR DONE SHOPPING, PLEASE MESSAGE ME AND I WILL SEND YOU A COMBINED INVOICE. The item "LIBERTAD MEXICO 2018 5 oz Silver Brilliant Uncirculated Coin BU SALE" is in sale since Thursday, March 29, 2018. This item is in the category "Coins & Paper Money\Coins\ World\North & Central America\Mexico\Mexico (1905-Now)". The seller is "the_coin_shoppe" and is located in Scarborough, Ontario. This item can be shipped to United States, Canada, United Kingdom, Germany, Australia.