It is easy to fool an old man, but if this is a fake, it's a good one. I say INFI! Why else would Dan obscure that part of the blade? 154CM is what I thought it was, which is ok with me, but why would he obscure that? There have only ever been two steels used by SY with mudder handles: INFI and 154CM. And why didn't he answer when asked if it was 154CM or SR77? Because it is neither!