Arabia Felix. Saba’. Mid-fourth-second century BC. AR quarter unit (11mm, 1.25g). Head of Athena r., wearing Attic helmet; on cheek, Sabaean letter X / Owl standing r., head facing; to l. olive spray and crescent; to r., South Arabian monogram. Munro-Hay 1.4iii var.; Huth -. Apparently unpublished with this monogram form.