Is this a Badik? It is similar in overall form. I have held on to it as I like the strong confident chunky work on the scabbard which I think is not typical. The blade has been forged and ground from a file. The handle is finished with a shotgun cartridge. I can make out the number 12 and the word COOPPAL. The scabbard has nylon fishing line binding which means it was made after 1938, there are no signs that the nylon is an addition to an older knife. Although simple in appearance the shapes are pleasing and the knife is most purposeful that I think whoever made it had done many times before.