ABBASID OF YEMEN: al-Mutawakkil, 847-861, AR dirham (2.94g), "200", A-1053N, mint/date formula bi-makiya sana wa mi'tayn, with the mint name either makka with an extra tooth or madina missing one touth, probably a contemporary imitation, perhaps intended as a souvenir for the Hajj, appears unpublished, VF, RRR.
Estimate: 200-300 USD
Now posted as Zeno #161389, this lot has generated an interesting discussion on Zeno.