Ayyubids. Yemen. al-'Aziz Tughtigin, AH 577-593 / AD 1181-1197. Fals (Bronze, 26 mm, 7.50 g, 11 h), uncertain mint, presumably Zabid. Citing the ʿAbbasid caliph al-Nasir li-din Allah (AH 575-622 / AD 1180-1225) within a circle, in and around a triangle, ‘al-imām Aḥmad / al-Nāṣir / li-dīn – Allāh / amīr / al-muʾminīn’ (‘Imam Ahmad al-Nasir li-din Allah, Commander of the Believers’ in Arabic). Rev. Within a circle, in a triangle, ‘al-malik al-ʿAzīz / Ṭughtikīn / ibn Ayyūb’ (‘King al-ʿAziz Tughtigin son of Ayyub’ in Arabic); around the triangle, ‘lā ilāha / illā Allāh / waḥdahū’ (‘There is no deity but Allah, the One’ in Arabic). Album 1091. Extremely rare and unusually heavy for this series. Areas of weakness and some deposits, otherwise, nearly very fine.