Watch List notes:

MESOPOTAMIA, Rhesaena. Severus Alexander. AD 222-235. Æ (16mm, 2.94 g, 12h). Laureate, draped, and cuirassed bust right, seen from behind / Sagittarius advancing right, holding bow, quiver of arrows over shoulder; to right, vexillum inscribed LEG III, Δ below. Castelin 17 = BMC 9; RPC VI Online 7929. Earthen brown patina. Near VF.

Very rare, the second known. Castelin only knew of the BMC specimen.