Bengal Sultanate

Sultan: Da'ud Shah Kararani (AH 980-984 / 1572-1576 AD)

Mint: Satgaon

Denomination: Silver Rupee

Obv: kalima shahada & four khalifas name in margin

Rev: daud shah sulaiman shah karrarani, khuld allahu mulkahu wa sultanahu and  sri daud shahi in nagari at bottom, six petal flower mint mark

Weight: 11.2g, Size: 29.93mm (Unlisted in G&G)

Condition: choice extremely fine, some test marks, Very Rare. 

Goron and Goenka does not list any type with six petal flower mint mark in any mint including the Satgaon, the listed mint marks are swastik, armed star, knot patterns and pentagram.