General questions about early Lancays

[vzlion]

Thanks PWCOSOL. I've read that. Actually, that's the basis of my second question. According to the article the Product Improved knives should not have a blood grove, but should have a shorter sawtooth, no step and a black blade. It also says the first knives of the Product Improved batch met those specs except for the black blade. Yet, I have one that seems to fit in between, it seems to be identical to the first order but doesn't have a blood groove.