QARAKHANID: Muhammad b. Yusuf, fl. 1030-1032, AE fals (4.26g), Tunkath, AH421, A-3361, cf. Zeno-29155, Kuchnev, citing Qiwam al-Dawla (Muhammad b. Yusuf) & Rukn al-Dawla (possibly = Sulayman b. Muhammad), about 15% flat strike, crude VF, RRR.
Estimate: 90-120 USD