Watch List notes:

MYSIA. Attaea. Marcus Aurelius, as Caesar, 139-161. Tetrassarion (Orichalcum, 30 mm, 14.32 g, 6 h), Asklepios, magistrate. Μ ΑY[ΡΗ ΟYΗ]ΡΟС ΚΑΙСΑΡ Bare-headed, draped and cuirassed bust of Marcus Aurelius to right, seen from behind. Rev. APXON ACΚΛH / ATTAITΩN Nude, youthful hero standing right, leaning forward and placing his right foot on rock; to right, Zeus standing facing, head to left, holding thunderbolt over infant in his right hand and long scepter with his left. Gorny & Mosch 176 (2009), 1622 (same dies). RPC IV online 434 corr. (reverse legend incomplete). Extremely rare, possibly the fourth known example. Minor edge split, otherwise, very fine.