This one is a copy of the "Wolhuter" knife. A friend of mine from South Africa made it for me a few years ago. The original was used by Harry Wolhuter, one of South Africa's first game wardens. By no choice of his own he had to kill a lion with it one night. Knife and hide are in a museum.
This one has a stainless steel blade with handles from the three thorn tree (black ivory)...sheath is buffalo hide if I remember correctly.