AQ QOYUNLU: Ya'qub, 1478-1490, AR light tanka (4.11g), Timajan, AH"820", A-2523.2, with the faman ya'mulu ... phrase in reverse center, date is engraver's error for 890, first year of this type, very rare mint in Gilan Province, choice VF, RR.
Estimate: 90-130 USD