1 Rupee - Islam Shah Suri

Islam Shah Suri inherited the throne from his father Sher Shah Suri in 1545 and spent much of his reign consolidating a fractious empire against both Afghan noble factions and the ever-present threat of Mughal restoration. His silver rupee coinage continued the weight standard Sher Shah had fixed — one of the more consequential monetary reforms in pre-Mughal South Asia, establishing the 11-to-11.5 gram silver rupee that would persist in various forms for centuries. Islam Shah died in 1553, triggering a succession crisis that effectively ended Sur power within three years, making his issues the last of any administrative coherence from the dynasty.