I remember Merle Seguine telling me the story behind the gut hook. He owned Alaska Tool and Die in Juneau and made some very good knives many years a go. He made the first gut hook for a bush pilot that wanted the hook on the end of his knife to lift the bail on his pots when out in the back country. Mere did make it and began to tinker and sharpened one to see how it worked on opening the animals cavity. This began the gut hook. Now that was better than 50 years ago.