Thanks for the comments... yes the mark on the screw is my fault. The base of the screw area had let go and I was trying to get a little more purchase on the screw to hold.. The other scabbard looks old too, it looks better after I cleaned the mold etc off it. I believe it is the same period as the knife. based upon the rust areas of the smaller kukri I like to believe in my wildest imagination it was a pick up and that is a blood stain that was never properly cleaned off. These knives were in a trunk untouched for about 40 years or so before I received them a few years ago. Who knows the real story but they were with his WWI items, which included a trench knife and a WW1 german bayonet. I don't collect imperial WWI so I helped her sell the bayonet.