Watch List notes:

Seljuqs, Western Iran. Ghiyath al-Din Mas'ud. AH 529-547 / AD 1134-1152. AV Dinar (25mm, 2.02 g, 4h). Tikrit mint. Dated AH 540 (AD 1145/6). Citing Sanjar as overlord; mint-name repeated in margin and also below reverse field. Jafar S.TI.540 var. (without mint-name below reverse field); Album 1691. Pierced, crudely struck on a thin and buckled flan. Near VF. Extremely rare.