Dagger is old, but I don't know where to date it. Mounts appear to be coin silver from the color of the tarnish. Blade is 3/32" x 5/8" x 5 3/4". Grip is 2 13/16", could be bone, polished antler, or even some form of ivory. It has a through tang with the grip being secured by an oval ball, and the tang peened down on it. I changed the guard on my copy to obtain more usable grip. My copy is done in nickel silver and polished antler with an 01 blade. The original sheath is leather with no wood core, and mounts of the same metal. There are no markings on the original knife, or sheath. Anybody got any ideas on the period?