Watch List notes:

ISLAMIC, Persia (Post-Seljuk). Khwarizm Shahs. Jalal al-Din Mangubarni. AH 617-628 / AD 1220-1231. AV Double Dinar (26mm, 7.20 g, 10h). Citing the 'Abbasid caliph al-Nasir as overlord. Uncertain mint. Dated AH 620. la ilah illa/ 'llah muhammad/rasul allah/al-nasir li-din Allah/amir al-mu'minin in four lines lines; Umayyad "Second Symbol" (al-Quran Sura 9:33) in outer margin / al-sultan al-a'zam/jalal al-dunya wa al-din/abu'l muzaffar mangubarni/ ibn al-sultan in four lines; trace of mint and AH date in outer margin. Cf. Album 1742 (dinar); cf. ICV 1905 (same); Zeno –. Traces of deposits in devices, areas of flat strike at periphery. VF. Unpublished denomination.