I have 5 Mr. Itou 4.5" drop point knives, unused, with scabbards, with the following handles: Ivory tusk, Mammoth molar, Narwhal whale horn, Dugong (Sea Cow) bone & whale tooth. I bought these from the original owner who purchased therm new via Kencrest USA. My understanding is that Mr Itou has retired from making knives. My desire is to sell these knives as alot. I'm not a true knife collector, so I'm asking for information regarding these knives and their reasonable worth to collectors. I'm going to attempt to post pics...this is my first post on iKnife as I'm a new member. Thanks for any help.