1 Văn - Tường Thánh imitation coinage

Tường Thánh Thông Bảo was a Chinese Song Dynasty coin type, and Vietnamese mints produced imitations of it across several centuries — a practice that reflected both chronic copper shortages and the practical reality that cash coins circulated by weight and familiarity rather than by issuing authority. The Toda reference places this squarely within the Vietnamese imperial cash tradition, though attribution of specific imitative types to particular reigns remains contested among specialists.