Round-backed throne variation.
AR Denarius (21mm, 3.48g, 6h). Rome mint, undated Commemorative Issue, but struck 82-83, ahiiu.
IMP CAES DOMITIANVS AVG P M, head laureate right; SALVS AVGVST (inwardly, clockwise from low left), Salus seated left on round-backed throne, with two corn ears and a poppy.
RIC 145 (R), BMC 54, RSC 412.
Ex CNG, ex Group SGF.
Analogous to the screaming eagle version of RIC 144, RIC 144a, with this variety I am drawing the distinction between round-backed and square-backed thrones.
More about this coin in the Archives on this website, June 3, 2018, "Domitian Denarii RIC 144 and 145: Two numbers, four varieties."