Watch List notes:

KATHIRI STATE OF SEIYUN & TARIM: al-Mansur ibn Ghalib al-Kathir, 1880-1929, AR 12 khumsi, AH1315, Y-2, specimen struck at the Heaton mint, Birmingham, PCGS graded Specimen 66. The Kathiri Sultanate entered into treaty relations with the British in 1888 and became a part of the Aden Protectorate.

Estimate: 200-300 USD