Arabia Felix. Saba’. Mid-fourth-second century BC. AR quarter unit (11mm, 1.29g). Head of Athena r., wearing Attic helmet; on cheek, Sabaean letter X / Owl standing r., head facing; to l. South Arabian monogram; to r., south Arabian monogram. Munro-Hay 1.4iii var.; Huth 258 var. Apparently unpublished with this monogram form.