安南。启定银条。左侧铸有纪年。压印端正清晰,两端有印,轻微诱人包浆。37.41 gms. KM-659. "Khai Dinh Nien Tao" (Made in the Khai Dinh era). "Tinh Ngan Nhat Lang" (Pure silver one Lang). "Trung Binh Hieu" (Produced on the Trung Binh scale). Cyclical date on left side. Stamps well applied and clear, with usual stamps on ends. Light attractive tone.EXTREMELY FINE.