Gordian III, AD 238-240. AR Antoninianus 22mm; 4.5g. Rome mint

IMP CAES M ANT GORDIANVS AVG, radiate, draped, cuirassed bust right.
SALVS AVG, Salus seated left, holding patera.

Cohen V, 324; Voetter p. 397.

Not in RIC, RSC, ERIC.
Very rare.
Ars Aeterna, item P1543, September 2011