Ok, Here is what David said:
Blade: Smolen carbon damascus in a ladder pattern. It is flat ground with a false edge on top and a clipped tanto point.
Guard: Hard to tell for sure, but is probably stainless steel.
Handle: Curly koa with a tung oil finish and held onto the tang with mosaic pins.
Sheath: Cowhide in a semi-cross draw style, made by me.
The design was based on one submitted by the customer. It appears to be in original and excellent condition.