[1] Excavations by Vietnamese researchers at Lang Vac have uncovered over 100 graves with a wide range of Dong Son culture objects.
A publication by Ngo Si Hoang in 1983 reported a wide variety of bronze objects in the area.
This drum was decorated with scenes of birds in flight, bulls and water vessels, as well as circular and geometric patterns.
It stood almost half a metre tall and was decorated on the tympanum with four birds around the figure of a sun, which marked the middle of the drum.
Stone and glass jewelry were also in abundance, but the specimens of clay pottery were plain and dominated by round based and footed bowls.