Tremissis - Anastasius I Dicorus VICTORIA AVGVSTORVM, Constantinopolis

Anastasius I inherited a treasury nearly emptied by his predecessor Zeno and responded with one of the more consequential fiscal overhauls of late antiquity — abolishing the deeply resented chrysargyron tax in 498 and stabilizing bronze coinage through a wholesale reform that gave the Byzantine monetary system the denominational structure it would carry for generations. The tremissis, worth one-third of a solidus, was the workhorse of smaller gold transactions throughout this period.

Constantinople's mint under Anastasius was tightly controlled, and the .990 fineness held with unusual consistency across his reign — a deliberate policy signal as much as a metallurgical standard.