Amir Yahya With Umar-I as overlord

Ruler : Yahya With Umar-I as overlord
Era : (reign 860/70s CE)
Dynasty : Habbarid Amirs of Mansurah (Sindh)
Denomination : Silver Damma (Qanhari Dirham)
Weight : 0.47  grams
Diameter : 9.5 mm
Reference : Fishman and Todd # HS7, Goron and Goenka # AS40

Obverse :
Billah yathiqu / Yahya wa bihi / yantasir.
(In God trusts Yahya and through him is victorious).

Reverse :
Muhammad / rasul / Allah / Umar
(Muhammad is the messenger of God, Umar).

Comment:
This is a joint issue of Amir Yahya and the founder of the Habbarid Emirate Umar-I, It is speculated that Yahya was a regional governor (or a heir apparent) during the rule of Umar-I at Mansurah.