Watch List notes:

ARABIA, Southern. Qataban. Unknown ruler(s). Circa 350-320/00 BC. AR Tetradrachm (20mm, 16.74 g, 9h). Imitating Athens. Helmeted head of Athena right; on neck guard, monogram of mq (in South Arabian) / Owl standing right, head facing; olive spray and crescent to left, Royal Qatabanian monogram and AΘ[E] to right. Unpublished. VF, toned, shallow cut on obverse, indications of undertype on reverse. Unique with monogram on obverse.