Good find. I have a real soft spot for these Mars types.
Here is my RIC 406A - MART VICTOR
Here is a RIC 405 - COS II - MARTI VICT
Some unlisted variations -
COS II - MARTI VICTO
COS II - MARTI VICTOR
COS II - MART VICT
There are some odd - shortened obverse legend variations which also occur with the reverse type.
IMP CA L SE SEV PER AG COS II - MARTI VICTORI
IMP CA L SE SEV PER AVG COS II - MARTI VICTORI
Also occurs COS I - MARTI VICT
and AVG II C - MARTI VICT (different reverse dies)
COS II also has a different, unpublished Mars type -
MART VICTOR, Mars, in military attire, standing left, holding Victory and spear