Siliqua - Valens VOT/V/MVLT/X, Nicomedia

Valens ruled the Eastern Empire as junior co-emperor under his brother Valentinian I, a division of power formalized in 364 AD that would outlast both men as a structural template for late Roman administration. The VOT/V/MVLT/X reverse vow formula places this coin within the first quinquennium of his reign — struck to commemorate five years completed and ten anticipated. Nicomedia, as a principal eastern mint, was heavily active during Valens' tenure precisely because his court moved frequently through Asia Minor under pressure from Gothic incursions across the Danube frontier. Valens died at Adrianople in 378, never reaching the ten-year vows this coin promised.