Watch List notes:

ISLAMIC, 'Abbasid Caliphate. temp. al-Ma'mun. as rebel, AH 195-198 / AD 813-8 n/a3. CU Fals (17mm, 1.81 g, 12h). Citing Sa'id ibn al-Surh al-Kinani and Abu al-Rayan. al-Ramla mint. Undated, but struck circa AH 200 (AD 815/6). Album 292; cf. ICV 505. Thick orangish earthen black-green patina. Near VF.

From the Dr. Jay M. Galst Collection. Ex Münzen und Medaillen 76 (19 September 1991), lot 1024.