(lot of 3) Dayak mandau swords with scabbards from Borneo, 19th century, having finely carved

(lot of 3) Dayak ""mandau` swords with scabbards from Borneo, 19th century, having finely carved stag horn handles, the grips are bound with woven rattan thread (one is wrapped in electrical tape), the blades have a chiseled edge on one side and are flat on the other, one blade has brass inlay and delicate piercing, the wood scabbards are bound with intricate cane thread weaving, one has carved decoration and red rope with hanging beads, and two have an extra sheath for a utility knife, largest 28""l, Provenance: From the estate of Edward Gerber