The coins were minted with 1 or 2 standards which is why you have been confused by it - you've gone to one with 2 standards.
mint mark will be SMKg (Sacra Moneta Kyzicus (gamma officina)).
Heres your ID and RIC#:
RIC VIII Cyzicus 32
Constantius II, AE4, Cyzicus.
DN CONSTAN-TIVS PF AVG, laureate head right
GLOR-IA EXERC-ITVS, two soldiers holding spears and shields with one standard between them. Dot on banner.
Mintmark: SMK gamma crescent.
RIC VIII Cyzicus 32, rated Rare.
Pretty cool - you got a rarer one to start with. But dont be fooled, the rarity here is questionable as the file lists other officinas - the rarity is probably in some very small feature and I'm guessing it's in the mintmark. Many of these were made at Cysizcus and a small difference between every other lots means that each one is listed seperately - if a die cutter puts the mint mark differently it will be listed as a variety and called 'rare' - in reality they are all from the same place and the same design.