1 Tanka - Sher Shah Suri Satgaon mint

Sher Shah Suri's administrative reforms extended directly to his coinage — he standardized the silver rupee (tanka) across the Sur Empire as part of a sweeping fiscal overhaul that Akbar would later borrow wholesale. The Satgaon mint, situated in Bengal near the Hugli River, was one of the empire's eastern production centers, active at a moment when Sher Shah was consolidating control over a region that had resisted Mughal authority for decades.

Sher Shah died in 1545 at the siege of Kalinjar, leaving this among the final issues struck under his direct rule.