Watch List notes:

NGUYEN DYNASTY (VIET NAM QUOC): Gia Long, 1802-1820, AR lang (36.97g), KM-179, in Hán Nôm characters, gia long nien tao (made in the Gia Long era) // tinh ngan nhat lang (pure silver one lang [liang]), trung binh hieu (made on the Trung Binh scale) on left edge and tri tien nhi quan bat mach (monetary value of 2 ligatures 8/1-) on right edge, VF. This type was restruck with many different dies until the early 20th century as a popular form of bullion for use in Indochina.

Estimate: 100-150 USD