40 Nummi - Anastasius I Dicorus Nicomedia, Type ✶M✶, Star, Small Module

Anastasius I's currency reform of 498 AD was one of the most consequential monetary decisions in Byzantine history — the introduction of the large follis and its fractions ended nearly two centuries of confusion in small copper coinage, giving traders a legible, rational system after the nearly worthless late Roman nummi had shrunk to the size of a fingernail. The Nicomedia mint, designated NIK, was among the original facilities activated for the reform.

This small-module variant sits in a contested zone of the type's chronology. The reduced fabric suggests later production within the Anastasian period, possibly reflecting metal economy pressures, though the precise dating within the 498–518 window remains unresolved in the literature.