Watch List notes:

Trebonianus Gallus (251-253), Sestertius, Rome, AD 25; AE (g 15,69; mm 28; h 1); IMP CAES C VIBIVS TREBONIANVS GAL[...], Laureate, draped and cuirassed bust r., Rv. ROMA AETERNAE / S C, Roma seated l., holding Victory and spear; shield at side. RIC 120.
Nice portrait, untouched green-brown patina, good extremely fine / good very fine.