Constantine i, VOT X. contemporary counterfeit or mule ?

[tenbobbit]

Hi Victor,
This is another one that has me a little puzzled.
From what I can work out it has a Constantine I bust with a Constantine II reverse, or am I reading it wrong.
Obverse - CONSTAN---TINVSAVG, Reverse - CAESARVMNOSTRORVM. VOT X within wreath, PTR  in exergue.
Weight - 4.41g, Size - 18mm.

[Victor]

It is definitely unofficial, the portrait is irregular.