A cannon and ammunition dating to the Nguyen Dynasty was found in the Ngu Ha River in Hue.
Nguyen dynasty weapons unearthed [Link no longer active]
Viet Nam News, 14 March 2012
Local museum staff in the central province of Thua Thien-Hue have found several ancient weapons believed to have been used during the reign of the Nguyen dynasty.
The antiques were found along the Ngu Ha River in Hue City’s Thuan Loc Ward.
According to the provincial department of Cultural, Sport and Tourism, the antiques include a cannon and 29 balls.