Watch List notes:

Delhi Sultanate, Suri Dynasty, Islam Shah Suri (AH 952-960/1545-1552 AD), Mintless type, Silver ½ Rupee, AH 956, Obv: Arabic legend The Kalima Shahada with Hijri year 956 within a square, the four Caliph's names in the margin, Rev: Arabic legend "Islam Shah bin Sher Shah Sultan Khallada Allah Mulkahu", Nagari legend "Sri Isalama sahi" and other titles around in margin, 4.89g, 21.04mm (G&G # D984), test marks, about very fine, Extremely Rare.

Note: Half rupees of the Delhi Sultanate are very difficult to encounter.