Watch List notes:

Yemen. al-Nasir Ahmad b. Yahya (Imam Ahmad). AH (13)75. AR 1/2 ahmadi riyal (30 mm, 13.94 g). San'a. Double crescent below accession date AH1367 / Full dates; denomination and mint name read inward. KM Y-16.1. About uncirculated. 

From the Estate of Benjamin R. Bell.