Unit - Vasishka

Vasishka is among the least documented of the Kushan sovereigns — his reign is reconstructed almost entirely from coinage, with no surviving contemporary written sources confirming his dates or his relationship to Kanishka III. The copper unit, far more common in the archaeological record than his gold dinars, circulated across the Kushano-Bactrian frontier during a period when Sasanian pressure from the west was beginning to fracture the empire's western territories.

Göbl's sequencing places this type late in Vasishka's issue chronology based on die-link analysis rather than any external historical anchor.