1 Dub 20 Cash, Regulating Dub

The "Regulating Dub" designation reflects the Company's attempt to rationalize the chaotic coinage circulating across the Madras Presidency in the early nineteenth century, where dozens of local issues, princely coinages, and older Mughal-derived pieces competed in daily trade. The 1807–1808 dating places this issue within the administrative reforms following the India Act of 1784, which had given the British government increasing oversight of Company fiscal affairs.

The dub itself was a unit peculiar to Madras, equaling 20 cash — a denomination structure inherited from older South Indian monetary custom rather than imposed from London.