A Muong woman in weaving (Lac Son, Hoa Binh) (Muong Textile Study)

PEG-treating in conservating a dongsonian dugout log coffin of 2300 years old

The Pham Huy Thong Museum with it's laboratories in Yen Hung (Quang Ninh)

The earliest amulet in fish form made from a big bird nail, which excavated in Du Sang rock-shelter (Kim Boi, Hoa Binh, Vietnam) in ca. 18.000 years ago

The S.E.M image to look for prehistoric bacterien from a Dongsonian ramie cloth fabric.