安南嗣德通宝四钱。ANNAM. 4 Tien, ND (1848-83). Tu Duc. NGC AU-55. 安南嗣德通宝四钱。重15.10克。正面铸打深峻而颇具趣味。额外字体 45 度旋转,字形呈点状。浅包浆,赏心悦目。"寳"下有一点蚀。<p>ANNAM. 4 Tien, ND (1848-83). Tu Duc. NGC AU-55.KM-448; Sch-351. Weight: 15.10 gms. Quite alluring and bold, this enigmatic striking features an interesting aspect in the angles of the obverse: the appearance of additional characters rotated at a 45 degree angle and stippled rather than connected. Lightly toned and highly pleasing, though a minor pit is noted below the "bao" (寶) character.