if that is a circumcision knife, i'd be wondering what kind of leather the sheath was made of.
there was a documentary on last night about a celeb travelling along the equator in africa, he went to visit a group of circumciser shamans, they do about 300 boys roughly 13 yrs old in one ceremony twice a year, works out about one boy every 12 seconds. i am glad i was a baby when they did me in a hospital

.....they showed the circumciser's knife, it looked like a thin hand forged spearpoint blade about 6in. long, inch or so wide, no fullers or central rib, with a simple nondescript leather covered grip. just a cheap old rough knife with no carving at all. not to say there are not variations....