Clade Mortis Carved Skull 2018 MW Cameroon 1 oz Silver Coin NGC MS 70 Antiqued. The Clade Mortis Carved Skull 2018 MW Cameroon 1 oz Silver Coin is a beautifully crafted piece depicting a carved top view of a skull with a golden snake. This stunning coin is made of. 999 fine silver and has a mintage of 666. Certified by NGC as MS 70, this uncirculated coin features the coat of arms of Cameroon on the obverse side. The coin also boasts an antiqued finish, adding to its unique and eye-catching design. Ideal for collectors and enthusiasts of scarce and exotic coins, this Clade Mortis Carved Skull coin is a valuable addition to any collection.