Watch List notes:

MESOPOTAMIA. Nisibis. Gordian III, 238-244. Tetrassarion (Orichalcum, 26 mm, 12.07 g, 1 h). AYTOK K M ANT ΔOPΔI[ANOC AY] Radiate head of Gordian III to right, with slight drapery on his left shoulder. Rev. CЄΠ KOΛON NЄCIBI MHT Turreted and veiled bust of the city-goddess to right; above, ram. BMC 13. SNG Righetti -. The obverse struck somewhat off center, otherwise, very fine.