Shocking as it may appear they carry about with them tokens of the number of persons they have killed. This they effect by inserting locks of human hair corresponding to the number of persons decapitated, in the sheath of their war knife, which is always attached to their persons, when from home. We fell in with a man this evening just returned from his labor, with a basket in which he had carried out the necessaries for the day, and to which was fastened a lock of human hair. The lock was ten inches or a foot long. He informed us that it was a token of his having cut off a head during the past year.2

2Doty, E.n/an/an/an/an/a, and W.J.Pohlmann/an/an/an/a, "Tour in Borneo . . . during the Autumn of 1838," , 8: 288.