Please identify this Roman Bronze [solved]

Probably Constans - but which?

The reverse type seems to be FEL TEMP REPARATIO with emperor on galley.

That is all I can say, because I can't enlarge the photos.

And I don't think that there's any visible mintmark letter below the galley.

 Enlarged a little 

 Then from those, this is slightly similar 

N#155258 

· Obverse
Bust of Constans, pearl-diademed, draped, cuirassed, right

Lettering: D N CONSTA-NS P F AVG 

· Reverse
Constans standing left on galley, holding Phoenix and labarum, Victory sits at the stern.
Officina and mintmark in exergue.

Lettering: FEL TEMP - REPARATIO 

 Something like this 

                      D N CONSTA-NS P F AVG  //  FEL TEMP - REPARATIO 

Big thanks to all of you!!!

Thessalonica mint for me :

https://www.nummus-bible-database.com/rechercher-une-monnaie.htm?page=1&personnages=11&ateliers=21&collections=&vendeurs=&motscles=Ae3&numric=&numnbd=&legendes=23&nombreResultats=50&btRechercher=Rechercher

diameter ?

elagabale2000

Thessalonica mint for me :

 

https://www.nummus-bible-database.com/rechercher-une-monnaie.htm?page=1&personnages=11&ateliers=21&collections=&vendeurs=&motscles=Ae3&numric=&numnbd=&legendes=23&nombreResultats=50&btRechercher=Rechercher

 

diameter ?

Great source, thank you. 

I don't have measures now - all my coins are under safe-keeping due to my upcoming travel.