BUWAYHID: Sultan al-Dawla, 1012-1024, AV dinar (2.97g), Madinat al-Salam, AH405, A-1580, Treadwell-Ms405G, with the additional title 'Imad al-Din, citing the caliphate heir-apparent al-Ghalib billah, with the word ibriz for "pure" beneath the reverse field, very rare date (none on CoinArchives), VF-EF, RR.
Estimate: 180-240 USD