Irish Knotwork Damascus Folder by ~ZachariahBusch Irish-inspired knot, carved in deer antler. Damascus blade, made by Norm Schenk of ID. Blade is 80 layers of 1075 and 15n20 steel. Knife is done in traditional Norse style. Based off of ones found in an archaeological dig in England. This style of folding knife originated circa 650 A.D.