Watch List notes:

The Roman Empire
Julia Mamaea, mother of Severus Alexander

Sestertius 228, Æ 19.01 g. IVLIA MAMA – EA AVGVSTA Diademed and draped bust r. Rev. FELICITAS PVBLICA S – C Felicitas standing facing, head l., holding caduceus and resting l. arm on low column. C 21. BMC S. Alexander 487. RIC S. Alexander 676.
Dark green patina, metal flaw on reverse edge at ten o'clock,
otherwise about extremely fine / good very fine

An example of Julia Mamaea's second portrait type; more mature with diadem and elaborate hairstyle. AMP.