Bengal Sultanate, Chittagong Region Trade Coinage, Silver Tanka, AH 959, In the name of Islam Shah Suri, Obv: Arabic legend The Kalima Shahada at the top in two lines & “Ghawth al- Islam wa’l Muslimin”, at the bottom, Rev: Arabic legend, “Islam Shah Sultan bin Sher Shah Sultan khuld Allahu mulkahu wa sultanahu” with 959 Hijri year & Nagari legend off flan at the bottom, 10.00g, 23.22mm, (Unlisted Type), counter-mark, about very fine, Extremely Rare.

Note: In the Goron & Goenka catalog, this coin represents a variant of # B1001, with the obverse legend enclosed within a single square.

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