Watch List notes:

Aq Qoyunlu, Ya'qub (883-896h), silver Tanka, countermarked type, mint unclear, 5.02g (A 2524); Rustam (897-902h), silver Tanka, countermarked type, Shiraz, with earlier countermark of Ya'qub dated 893h, 5.17g (A 2535); Muhammad (903-905h), silver Tanka, Kashan 904h, with Timurid countermark, 4.65g (A 2542). Fine to very fine, the last rare. (3)

Estimate: £70-90