I have an old British sailors knife , one main blade and a marlin spike. The knife has always been in rough shape , very hard to open , etc.
The scales I thought were some rough cut wood impregnated with cosmoline or something along those lines , cut with a grippy pattern in them.. So one day I decided to take out the marlin spike and make it a single bladed knife since it was just collecting sock dust in my drawer. I spent a few nights on it polishing the parts , getting rid of decades old rust and gunk , put the knife back together with new pins then decided to sand the scales flat and polish the wood up some.
Well after sanding them flat I noticed and odd chatoyance and opaqueness to the wood , well silly me , that was because the wood was horn ! A very dark and beautiful horn.
To be honest it was also the smell of the dust from sanding that made me go 'hmmm' , this doesnt smell like any wood I've come across, smells more like mildly burnt hair !
Yea so , I have one knife with horn scales now.
Tostig
edit = the 'moose buffalo' is my favorite in that pic.