Watch List notes:

ABBASID OF YEMEN: al-Ma'mun, 813-833, AR local dirham (1.01g), NM, ND, A-1050, without the caliph's name, citing the governor Ahmad below the reverse field, with Qur'an verse 30:3-4 in obverse margin, 9:33 in reverse margin, thus the opposite of the normal location, some porosity, crude VF, RRR. Ahmad is known from gold dinars of San'a dated AH213. The calligraphy on this piece is identical to that of a gold dinar of San'a 214 that bears the name of the caliph (Zeno-97534) but without citing any governor.

Estimate: 220-260 USD