Maximianus IOV ET HERCV CONSER AVGG from Antioch...two different bust types

[Victor]

I have these two coins with the same RIC number that essentially have different bust types. Of course, different engravers are trying to accomodate the lengthy legend.

the first is the more usual bust type



Maximianus
A.D. 285- 295
Æ Antoninianus 22x23mm 3.4g
IMP C M AVR VAL MAXIMIANVS P F AVG; radiate and cuirassed bust right.
IOV ET HERCV CONSER AVGG•; Jupiter standing right, holding globe and sceptre, facing Hercules standing left, holding victory, club and lion's skin; between them Z.
In ex. XXI
RIC Vii Antioch 622


and this one, with no shoulders



Maximianus
A.D. 285- 295
Æ Antoninianus 22x23mm 3.3g
IMP C M AVR VAL MAXIMIANVS P F AVG; radiate and cuirassed bust right.
IOV ET HERCV CONSER AVGG•; Jupiter standing right, holding globe and sceptre, facing Hercules standing left, holding victory, club and lion's skin; between them Γ
In ex. XXI
RIC Vii Antioch 622