Watch List notes:

ARABIA, Southern. Saba'. Late 4th–mid 2nd centuries BC. AR tmrt – Quarter Unit (11mm, 1.18 g, 7h). Imitating Athens. Helmeted head of Athena right, t (in South Arabian [mark of value]) on cheek / Owl standing right, head facing; olive spray and crescent to left, monogram of yd (in South Arabian) and AΘE to right. Huth, Athenian, Symbol 17 var.; cf. Van Alfen, Studies, Series SII.B.12 = Huth 206 (unit with slightly different monogram); CAF –; HGC 10, –. EF, toned. Exceptional for series, unique with this monogram.