The reign of Trebonianus Gallus was marked not only by nearly constant warfare against the Goths and Persians but also by the Cyprian plague, which arrived in the city of Rome in AD 251 and killed as many as 5000 people A DAY in Rome. For those interested, there are four CT threads, each of which deal with the Cyprian plague in greater or lesser depth: https://www.cointalk.com/threads/a-coin-struck-while-the-dust-settled.347580/ https://www.cointalk.com/threads/apoll-salvtari.354625/ https://www.cointalk.com/threads/their-plagues-and-maybe-ours.355652/ https://www.cointalk.com/threads/the-cyprian-plague.340369/ Several of T-Bone's coins show his religious and political attitude towards the epidemic that so devastated the empire. Gallus appealed to the gods by coins of many different reverse types, including those honoring Salus (Greek Hygieia), the daughter of Aesculapius and the personification of health. Salus is depicted on Roman coins either seated or standing and feeding a snake from a patera. She may hold the snake in her arms or it may be depicted rising from an altar around which it is coiled. Here are a few of T-Bone's SALVS types in my collection. Let's see your coins depicting Salus, Hygieia, T-Bone, or anything you feel is relevant. Trebonianus Gallus, AD 251-253. Roman AR Antoninianus, 3.78 g, 24 mm, 7 h. Rome, AD 253. Obv: IMP CAE C VIB TREB GALLVS AVG, radiate, draped and cuirassed bust, right, seen from behind. Rev: SALVS AVGG, Salus standing left, feeding serpent, rising from altar, out of patera with her right hand and holding scepter in her left. Refs: RIC 46a; Cohen 117; RCV 9649; Hunter, p. cvi. Trebonianus Gallus, AD 251-253. Roman orichalcum sestertius, 19.25 g, 27.4 mm, 1 h. Rome mint, 3rd officina, 1st emission, AD 251. Obv: IMP CAES C VIBIVS TREBONIANVS GALLVS AVG, Laureate, draped, and cuirassed bust right. Rev: SALVS AVGG S C, Salus standing right, feeding serpent which she holds in both arms. Refs: RIC 121a; Cohen 115; RCV 9678; Banti 31; Hunter p. cvi. Volusian, AD 251-253. Roman billon antoninianus, 4.15 g, 21.2 mm, 1 h. Rome, 2nd issue, September - December, AD 251. Obv: IMP CAE C VIB VOLVSIANO AVG, radiate, draped and cuirassed bust, right. Rev: SALVS AVGG, Salus, standing right, feeding out of patera snake held in arms. Refs: RIC 184; Cohen/RSC 118; RCV 9769; Hunter 22.
A little unofficial coin with Salus (barbarous imitation of Tetricus, the "official" coin is RIC V Tetricus I 127)
Caracalla was a bit more specific showing Salus with her snake raising the personification of the Human Race SAL GEN HVM.
