Watch List notes:

ARABIA, Bostra(?). Trajan. AD 98-117. AR Tridrachm (24.5mm, 10.29 g, 6h). Struck AD 112-114. Laureate, draped, and cuirassed bust right, seen from front / Aquila between two signa; that to the left surmounted by wreath, that to the right by hand. Ganschow, Münzen X14d var. (signa reversed); RPC III 4062A (Arabian mint); Metcalf, Tell Kalak 10 and 11-13 (obv./rev.); cf. Sydenham, Caesarea 226-227. Toned, light scratches, roughness. VF. Very rare, only three of this variety known to RPC.