1/4 Qirat - Ali b. Yussuf

Ali ibn Yusuf ruled the Almoravid empire at its greatest territorial extent, yet the fractional silver coinage of his reign reflects a monetary system under pressure — trade with sub-Saharan gold sources was robust, but small-denomination silver fractions were needed to lubricate local markets across al-Andalus and the Maghreb. At 0.25g, these quarter-qirats were among the smallest struck silver denominations anywhere in the medieval Islamic world, and surviving examples with legible fields are genuinely scarce; the tiny flans shed detail aggressively in circulation.