Arabia Felix, Qataban. AR tetradrachm. Mid-late 4th century BC. 21 mm, 16.63 g. Imitating Athens. 

Head of Athena with profile eye right, wearing crested Attic helmet, monogram on neck.
AQE, owl standing right, head facing, crescent and olive branch in left field, royal Qatabanian monogram composed of South Arabian letter hl (resembles a trident) in right field.

Huth 344; van Alfen pl. 20, 41.
Very rare. 

With permission of VAuctions auction 325, Lot 308, June 2017.