1 Māṣa Java-Jenggala

The masa was the dominant unit of account across the Javanese river kingdoms for nearly three centuries, minted in the courts of Kadiri, Singhasari, and the early Majapahit transition period. These coinages circulated alongside imported Chinese cash and indigenous ring-money in the dense trade networks feeding Java's pepper and rice economy. Attribution to specific reigns remains genuinely difficult — the Wicks sequence groups them typologically rather than dynastically, and no surviving court record reliably ties a specific die to a specific ruler.

At 2.41 g, this falls precisely within the classical masa standard, which itself derived from a weight system shared across maritime Southeast Asia and traceable to Indian mercantile influence no later than the 9th century.