4 Tiền - Bao Dai

Bảo Đại ascended the throne in 1926 as a French-educated teenager, and the gold tiền denominations issued under his reign were minted to traditional Nguyễn dynasty specifications — a deliberate continuity with the coinage of Gia Long and Minh Mạng rather than any French colonial standard. The 4 tiền weight of approximately 16.5g traces directly to the pre-colonial Vietnamese cash system, not the metric framework France imposed elsewhere in Indochina.

Bảo Đại abdicated in August 1945 under pressure from the Việt Minh, ending both the dynasty and the series.