In this research, the researcher studied two coins of silver minted in Raydah mint, which are preserved in the collection of Khalil al-Daba'i, who is an interested collector in Islamic coins in Yemen. These two coins are undated. The first coin weighs (0.38 gm), and the second weighs (0.5 gm). These two coins are classified as ‘one-sixth of the dirham'. the researcher studied the second coin in his study for his phd entitled ‘the coins of Zaydí Imáms in Yemen (280-793 AH/893-1391 CE); the first coin is published in this research exclusively. The writings on these two coins display the political conflict between the grandsons of Imam al-Hádí ilá al-Haqq Yahyá, and the doctrinal implications of the Zaydi Shi'ism coins of Yemen. finally, the coins of the Zaydí Imáms minted at Raydah mint are among the rarest coins in the world, and these coin are the only coins of al-Mukhtár li-dín Alláh al-Qásim b. Ahmad (325-345 AH/ 937-956 CE).