1/4 Mithqal - Tahmasp I Safavi Kashan - Fourth Gold Standard

Tahmasp I ruled for over fifty years — the longest reign in Safavid history — and his monetary reforms reshaped the dynasty's gold coinage across multiple phases. The "Fourth Gold Standard" designation reflects one of several recalibrations to the mithqal weight system undertaken during his reign, as the court adjusted to pressures from both Ottoman economic competition to the west and shifting Central Asian trade dynamics to the east. Kashan, a significant craft and commercial center, operated as one of the more productive provincial mints under his administration.