THE FACE CARVED ON THE SCABBARD IS A SINGA AND IS IN USE IN THE BATAK CULTURE. SEARCH FOR SINGA FOR MORE INFO. THE COLOR OF THE BONE FERRULE IS CONSISTANT WITH STAINING AND SMOKEING WHICH IS A COMMON PRACTICE ON IVORY AND BONE IN QUITE A FEW COUNTRIES. I SEEM TO REMEMBER A OLD POST OR ARTICLE WITH PICTURES ON HOW IT IS DONE. I LIKE THE ITEM AND IF THE PRICE WAS RIGHT WOULD LIKELY HAVE PICKED ONE UP MYSELF BECAUSE OF THE WORKMANSHIP AND THE UNUSUAL BLADE FORM USED.