Picis

The cash coins of Indonesia was a historical currency in Indonesia based on Chinese imperial coinage during the Tang dynasty era. It was introduced by the Chinese traders, but did not become popular in Indonesia until Singhasari defeated the Mongol Empire in 13th century. Chinese cash coins continued to circulate in Indonesian archipelago for centuries; when the Ming dynasty banned trade with the region, many local rulers started creating their own imitations of Chinese cash coins which were often thinner and of inferior quality. Cash coins produced in Indonesia were made from various materials such as copper-alloys, lead, and most commonly tin.

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