Annam
Thieu Tri gold Tien ND (1841-47), KM257.1 (in silver), Sch-262, AU53 NGC, lightly toned and original with extremely sharp details, rare type listed in the SCWC in silver, but not in gold. Very similar to KM517 for Tu Duc. 3.83 grams. Also similar design to Fr-18a, which is a 1 1/2 Tien.
Estimate: 5500-6500 USD