COMES WITH HIGH QUALITY COLOR AND LAMINATED CERTIFICATE OF AUTHENTICITY (with coin's picture in HD)! Medieval Reference: i98-72 ISLAMIC (Post-Mongol). Qara Qoyunlu. Qara Yusuf, second reign, AH 809-823 / AD 1406-1420. 1/3 Tanka with his son Piri Budaq, Imadiya, date off flan. Album 2479. Rare. Good very fine.Weight: 1,65 g Diameter: 13mm Axis: 6h.