Watch List notes:

Ghaznavid. Yamin al-Dawla Abu'l-Qasim Mahmud. 388-421/998-1030. AR dirham (18 mm, 2.90 g, 4 h). Bilingual type. Mahmudpur (Lahore), AH 418/9 (1027-1029). Arabic legend: Shahada followed by yamin al-daula wa amin mahmud al-milla ("Mahmud, guardian of the faith"), al-qadir at left, billah above / Sanskrit legend in Sharada letters: avyaktameka muhammada avatar nripati mahamuda ("the Invisible is One, Muhammad is the manifestation, Mahmud the king"). Goron & Goenka GZ5; Album 1610. Attractively toned and well struck. Good very fine. 

A fascinating coin in that it is one of the few bilingual coins from this period, showing the Islamic professions of creed in both Arabic and Sanskrit!