ISLAMIC KINGDOMS. Aq Qoyunlu. Tanka, ND (AH 880s-900s [1480s-1500s]). Anonymous. NGC G-4; Countermark: AU Standard.

A Type-2564. A countermark of unknown origin, it is nevertheless a charming example for those seeking a coin with a bit of mystery to it. The countermark is partially struck, with some weakness at the uppermost portion of stamp, with the host coin seeing much circulation.

Estimate: $60.00 - $100.00