The natural handle material is BEAUTIFUL.  Natural smooth bone and not synthetic in any way.  The handle material is semi-transparent.  THIS IS AN OLD ONE!  Looks to be pre WW1.
 
Twoblade.  Marked Camillus Cutlery Co Camillus USA.
 
Damaged.  One blade has been shaped and sharpened into a smaller blade.  The handle material has cracks and is loose. Keep this in mind before purchase....great antique display piece!
 
3 3/8" long when closed.
 
Location E2