These hand poured 5 oz .999 silver bars were minted by Monarch Precious Metals. The viking warrior design is the first design in the series printed by this mint. The Monarch crown logo is the mint mark. Monarch Precious Metals was founded in the Rogue Valley of southern Oregon in 2008. I am not sure there was any occasion these were made for, just a new pour and design style for the mint. I am also not sure exactly when these were minted other than sometime between 2008 and 2018.