Vietnam - Tu Duc (1848-1883) - AR 1 Tien nd. (KM.415; BNF suppl. 493; Schr.387) - Obv: Tu Duc Thong Bao / Rev: Vase with the coral branch, the perfume burner and the offering box (the Three Abundances), legend: Tam Da - 4.18 g., crude straight milling - VF