1 Cash - Đại Bình Hưng Bảo

Issued under Đinh Tiên Hoàng, who unified the fractured warlord states of the Twelve Lords' Rebellion and proclaimed the independent state of Đại Cồ Việt in 968 — the first fully autonomous Vietnamese polity to mint its own coinage. This piece predates Chinese suzerainty being reimposed and belongs to a reign that lasted barely a decade before Đinh Tiên Hoàng was assassinated in 979, allegedly while drunk, by a palace eunuch named Đỗ Thích.

Hartill's 25.1 designation places it as the opening entry in his Vietnamese series — the earliest indigenous coinage catalogued in that reference.