India - Sultans of Bengal - Chittagong Region Trade Coinage - AR tanka (9.62 g.) i.n.o. Bahadur Shah, AH959 (G/G B1010; MBLA282; ZENO293740) - Obv: Kalima, beneath: al-sultan bin al-sultan (misspelled) / Rev: bahadur shah sultan bin muhammad shah sultan khallada allah mulkahu wa sultanatahu - Very Rare aVF