This coin is outside my usual areas of interest, but it was such a striking example and reminded me of the Constantine issues with the double bust with Sol on reverse.
Postumus
A.D. 269
Ӕ Antoninianus
20mm 3.6g
IMP C POSTVMVS P F AVG; Radiate, draped, cuirassed bust right.
PACATOR ORBIS, radiate and draped bust of Sol right.
RIC V.4 Cologne 421; Cunetio 2465