This is two knives that I am working on, am not a folder maker so bought Fronteddud & Steigerwald book and went after a lock back, it has tried my patents but think I win, the side plats and bolsters are one piece out of 416 ss and dove tailed, if I can stand to make more will use ball bearing pivit. The outher is a California knife the blade and sheath are done, been working on the wrap, the handle is mop and abalone with nickel silver, made a die to form the wrap, it all so takes a little patents, will post pictures when done. Deane