Watch List notes:

Trebonianus Gallus. AD 251-253. AR Antoninianus (20mm, 3.35 g, 12h). Rome mint, 3rd officina. 2nd-3rd emission, AD 251-252. IMP CAE C VIB TREB GALLVS AVG, radiate, draped, and cuirassed bust right / PIETA S AVGG, Pietas standing left, raising both hands; lighted altar to left. RIC IV 41 note; RSC 88a. Good VF, lightly toned. Rare variety.

Ex Solidus Numismatik Online Auction 15 (20 May 2017), lot 342.