9 Tien - Tự Đức

Tự Đức reigned longer than any other Nguyễn emperor, but his reign was defined by compounding catastrophe: French forces seized Saigon in 1859, and by 1867 the southern provinces were lost entirely. The court at Huế continued striking silver in traditional denominations — the tien being a weight-based unit rather than a face-value construct — even as the empire's fiscal and territorial authority contracted around it.

At 34.2 grams, the 9 tien sits just below a full lạng, a deliberate weight relationship used in court transactions and tribute payments rather than everyday commerce. These pieces circulated primarily within the imperial administration.