Local people and workers discovered a jar containing ancient coins at Nam Cat Reservoir construction site in the northern Bac Kan Province.
Some researchers from the provincial museum investigated the area and collected 14kg of coins, which are estimated to have been buried at the end of the 18th century.
The coins are from Viet Nam, China and Japan. The museum received an ancient jar at the 18th century including many moneys from Vietnam, China and Japan. Moneys from some dynasties: Le dynasty, Ly dynasty, Nguyen dynasty, Minh dynasty, Tong dynasty and Thanh dynasty from China.
Discovering the jar to mark a great value and meaning of Bac Kan provincial culture and history. It is a condition to study and discover some archaeological documents in Bac Kan land nowadays.
Scientists said the discovery proved the existence of well-developed trade relations between the locality and other regions in the second half of the 18th century.