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

Experiment in Hoa Binh CESEAP-station to resaerch the flying distand of bronze arrow-head excavated in the Ancient Co Loa Citadel (Hanoi)

A Bat Trang ceramic vase with special design of flutting scholar (Ceramic collection of Pham Huy Thong Museum)

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

A silk fragment with weaving design of trade workshop name excavated from 18th mandarin's tomb (Project : Ancient Textile in Vietnam)