Sterling Silver Thors Hammer Viking Knotwork Pendant. This is a double sided design, high polished, very detailed and at a great price. Good Knotwork throughout the entire face and back side is exactly the same. A reversible design with the best in details. A cross over in a bit of a Peruns axe style. We have some new fine sterling silver Thors Hammers and Viking designs in hand just completed. Biker Jewelry Club and Sinister Silver Co. for Viking Biker Jewelry.