Hello I have a knife that looks like a machete its blade from the guard to the end is 13 3/4". It also has a leather scabbard with a brass edge that a nipple that locks into the hand guard I hear it is from WWI it has a ordinance flaming bomb on the left side with "PLUMB PHILA. 1917" on the right it has US 47053. I would greatly appreciate anyone who could shed some light on what this is.