Ive recently fallen very hard for the Manix 83mm,So hard in fact that I bought two in the span of 5 days. I plan on buying another if everything goes according to plan, but i have a packaging question. I received my second Manix in the mail today and noticed a difference in the labeling. My original Manix 83 had the letters FG next to the SKU# and under the knife name on the side of the box. My more recent Manix purchase has the letters HF in the same spot. What do those letters mean? Is there some sort of difference in the two knives? Any help would be much appreciated, thanks!