Watch List notes:

Khwarizmshahs. 'Ala al-Din Muhammad II. AH 596-617 / AD 1200-1220. AR Double Dirham (29.5mm, 6.71 g, 6h). Citing Abbasid caliph a1-Nasir. Farwan mint. Dated AH 617 (AD 1220/1). SNA Tübingen XIVd, 794-6 var. (date); Album 1716; ICV 1901; E.E. Oliver Collection (J. Schulman, 18 Nov 1907), lot 263 (this coin?). Toned, areas of flat strike. VF. Extremely rare with this date, not noted by Album.

Ex BRN Collection (Classical Numismatic Group Electronic Auction 409, 8 November 2017), lot 815; William F. Spengler Collection (Classical Numismatic Group Electronic Auction 400, 28 June 2017), lot 712.