I have a question? I've been watching and looking on the bay for the USMC Clauss and the last few have been the older version with U.S.M.C. etched on the blade and a round point there is one just listed that has or looks to have a spike or square point and being of the older version. My question is being I've never seen one other than on the bay is the USMC on the blade stamped or etched with acid or some other way and how easy would it be for somebody to fake and how could you tell?