VIETNAM (ANNAM), Nguyễn dynasty. Dực Tông (Tự Đức). 1847-1883. AR Quan (28x9.5mm, 5.44 g). Tu Duc Nien Tao in Han-nom characters / Giá tiền nhất quán in Han-nom characters. Schroeder 340; cf. BN Vietnam II 232 (for similar); KM 502. Toned. In PCGS encapsulation 49045620, graded AU 58.
From the Norman Frank Collection.