Watch List notes:

Marcus Aurelius, as Caesar, AD 139-161, aureus, Rome, struck under Antoninus Pius, c. AD 159-160, ΛVRELIVS CΛES ΛVG P II F, bareheaded, and cuir. bust r., gorgoneion on breastplate, rev. TR POT XIIII COS II, Mars advancing r., holding transverse spear and trophy over shoulder, wt. 7.24gms. (RIC III.481 var. (bust-Pius); Calicó 1973b; BMCRE 994, note (Pius); Biaggi 894 var. (bust)), a few minor marks, good very fine, very rare bust variety, only three recorded in Coin Archives, one with this reverse type
(3000-4000 GBP)