Delhi Sultanate, Suri Dynasty, Sher Shah (AH 945-952 /1538-1545 AD), Mintless, Jahanpanah type, Silver Rupee, AH 948, Obv: Arabic legend The Kalima Shahada at the top in two lines, “al-sultan-ul-adil” within a square, & the four Caliphs’ names in the margins, Rev: Arabic legend “Sher Shah Sultan khuld Allahu mulkahu wa sultanahu", 948 Hijri year, Nagari legend “Sri Ser Sahi” within a square, “Farid ud dunya wal din Abu'l Muzaffar Jahanpanah” in the margins, 11.50g, 28.80mm, (G&G # D809), test mark, about very fine.

Note: It's likely that these coins were minted in or around the area of Shergarh in Bihar.

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