Watch List notes:

Khwarizmshahs. 'Ala al-Din Muhammad II. AH 596-617 / AD 1200-1220. Cast Æ Seal Stamp (128mm, 226.40 g). al-sultan al-'azam/ala al-dunya wa al-din/abul fath Muhammad/bin al-sultan in Kufic in four lines; ornament above and below; all within double linear circular border with external decoration / Blank, but for cast finger ring. Reportedly an example in the Islamic Museum, Berlin (not in online catalog). Earthen green patina, section broken and lost, which does not affect inscription. As made. Very rare.