I am trying to identify this coin, but I got a problem :(
The obverse looks like it is from the first period (Constantine I as Caesar 306-307 AD), but obverse - like it is from the second period (Constantine I as Augustus 307-337 AD) and minted after 324 AD.
Can somebody explain what is going on here? And maybe the approximate value of this coin.
Bronze
Weight 1.88 g
Diameter16.3 mm
