India - Sultans of Bengal - Chittagong Region Trade Coinage - Wamar Shah (AH988-994 / AD1580-1586) - AR tanka, NM (Chittagong), AH988 (retrograde) (G/G B1018; MBLA306; ZENO293747) - Obv: Kalima, split by two horizontal lines + date 889 (error for 988) / Rev: sultan/al-'adil wamar shah/khalad allah mulkahu /wa sultanahu - Extremely Rare, a.XF