Watch List notes:

Marcus Aurelius. As Caesar, AD 139-161. Æ Sestertius (33mm, 22.57 g, 6h). Rome mint. Struck under Antoninus Pius, AD 151-152. Bare head right / Virtus advancing left, holding parazonium and spear, with foot on helmet. RIC III 1304A (Pius); Banti 511. VF, brown patina, red and green deposits, some corrosion.