This one is from Gaétan Beauchamp that I purchased about 17 years ago. The scales are fossilized walrus tusk. My wife wasn't to happy at the time that I spent $400 on the knife. She would stroke out to see what they cost now.
Here is one I had made for my son from the broken horn of an oryx he killed in 2019. A couple weeks ago he put it to good use field dressing his most recent oryx.