sentences:  The lightest 'Nkobnkobs' in the hoard were 108 gm and 114 gm, while they are routinely found (called Onoudu) under 80 gm, this implies that the group was buried at a certain point in the size devolution of the manilla.Mkporo are made of brass.The weight correspondence of the oval-foot Nkobnkob with the high end of the round-foot range suggests that it is either the earlier variety, or contemporary with the earliest round-foots.