ISLAMIC, 'Abbasid Caliphate. Al-Amin, AH 193-198 / AD 809-813. Dirham (Silver, 24 mm, 2.94 g, 9 h), citing the caliph al-Amin as 'al-'Khalifa', Madinat al-Salam, AH 197 = AD 812/3. Album 221.3. SICA III, -. Extremely rare. Some bumps and scratches, otherwise, good very fine.
This issue was likely struck during the siege of Madinat al-Salam by Tahir, just a few months before al-Mamun ordered the execution of his brother al-Amin, which was carried out on the 27th September 813.