ISLAMIC, Persia (Post-Seljuk). Khwarizm Shahs. Jalal al-Din Mangubarni. AH 617-628 / AD 1220-1231. AR Double Dirham (22mm, 5.56 g, 1h). Qal'a Nay mint. Undated, but struck circa AH 618 (AD 1221). Album 1743; ICV 1906. VF, rough surfaces. Very rare.
Qal'a Nay was a fortress near Ghazna.