Okay, so in the past day I've logged the 30th emperor who's bust appears on a coin of mine and reached 36 issuing rulers - 30 emperors, 2 issued under emperors but not depicting them and 4 roman females.
Heres the coin; not emperor 30 but one I didnt have represented previously.
Obverse: DN CONSTAN-TIVS P F AVG
Reverse: HOC SIG-NO VICTOR ERIS
Mint mark: Does not survive but this type only issued from Sciscia mint.
This coin was struck by Vetranio to show his loyalty to the constantinian dynasty. As such, it is labelled as 'Under Vetranio'. The bust is of Constantius II. It is estimated that this type was issued around 351AD.
The reverse inscription means 'By this sign you shall conquer' which is a homage to the vision seen by Constantine which converted the romans to christianity.
Its in pretty shoddy condition - you need to turn it around in your hands to really appreciate any detail left.


Big thanks to Chrsmat - this coin was given to me from his culls pile! (im sure a lot of you think that it belongs there! I'm not so picky about condition - its all history)
NOTE: This exact type is also minted showing Vetranio on the coin - the lack of an obverse inscription means it could be him, but the bust looks a lot more like Constantius and this is a lot more likely