'Abbasid caliphs
al-Mu'tamid 'alâ llâh, 256-279 H./870-892 AD. Yamanî Dinar 278 H., San'â, as above with the names of the prince Ahmad ibn al-Muwaffaq, his father al-Muwaffaq and the caliph, mint mark alif below obv. field. Bernardi 4088El; SICA 10 No. 242. 2.93 g.; Very rare Extremely fine
Acqu. Baldwin's, London, Islamic Coins Auctions 5, November 2002, lot no. 118.