Rare bronze fals, joint issue by the Tahirid Abd' Allah bin Tahir, Abu Abdallah and Abbasid Caliph al-Mutawakil (847-861 AD), Shash mint, 241 AH / 855 AD, Central Asia

Normal arabic inscriptions on both sides, including Kalima, mint (Shash) and date (241 AH = 855 AD). Mint of Shash (Chach, modern Tashkent). 26mm, 3.77 grams. Rare.

Joint Abbasid/Tahiissue, rare.