Watch List notes:

ABBASID: al-Mu'tamid, 870-892, AR dirham (2.68g), al-Muwaffaqiya, AH270, A-240.6, citing the heir Sa'id b. Makhlad as dhu'l-wizaratayn, "possessor of the two vizierates", full mint and date, slightly bent, nearly VF, RR. Al-Muwaffaqiya was a military camp set up by the Abbasid army for their defeat of the Zanj Rebellion in southern Iraq. Normal Abbasid gold and silver were struck there in AH268-270, but the camp was abandoned after the defeat of the Zanj, which occurred early in 271.

Estimate: 260-350 USD