RASSID: al-Mahdi Ahmad, 1249-1258, AE fals (1.72g), San'a, ND, A-1085F, cf. Zeno-190946, citing the ruler as al-imam al-mahdi li-din Allah ahmad bin al-husayn, the second reported speciman of this type (a few more attrociously preserved copper coins of this ruler are listed on Zeno), some corrosion spots, VF, RRR.
Estimate: 100-130 USD