Watch List notes:

ARABIA, Southern. Saba'. Late 4th–mid 2nd centuries BC. AR nṣf – Unit (16.5mm, 5.02 g, 6h). Imitating Athens. Helmeted head of Athena right; N (in retrograde South Arabian; mark of value) on cheek / Owl standing right, head facing; [olive spray] and crescent to left, crescent to lower right. Van Alfen, Studies, Group SII.B.1, 112a (O4/R6 – this coin, illustrated); CAF 1.1ai; Huth 170. Green deposits. VF.

From the MWF Collection. Ex Classical Numismatic Group XXII (2 September 1992), lot 177.