Not worth 500k. The reason there is only 1 for sale on Atlantic, is because they don't sell very well. The recipe is not rare, neither are the resources to craft it. The only advantage to having this in your pack is that when you carve an animal, the hides go into your pack already cut(saving a lot of weight)....this is automatic....you don't have to open the corpse. A better knife for carving is the harvester blade, which will give 10% more from the animal....and worth 500k, because they came from the turkeys that showed up in November(haven't been around for several years). To get one you had to get a skinned turkey drop and trade it to a butcher, for the blade.