Watch List notes:

Trebonianus Gallus (251-253), Sestertius, Rome, AD 251-253; AE (g 17,14; mm 31; h 6); [IMP] CAES C VIBIVS TREBONIANVS GALLVS AVG, laureate, draped and cuirassed bust r., Rv. [S]ALVS AVGG, Salus standing r., feeding snake held in arms; in field, S - C. RIC 121a; C 115.
Expressive portrait, green patina, extremely fine / about extremely fine.