Roman coins identification [opgelost]

Dear all,

could you please help me identify three Roman coins?

Weight and diameter are on the pictures. 

Coin 1:

Coin 2: 

Coin 3:

#1, Constantius Gallus; reverse FEL TEMP REPARATIO: N#402973 

#2, lettering worn but name begins with CONSTAN…; reverse GLORIA EXERCITVS.

#3, portrait and lettering very worn; reverse FEL TEMP REAPARATIO.

Curiously they appear to have the same mintmark, SMKA from Cyzicus.

Thanks bro. 

Let me post better pictures:

#1 

2,3g 

18,4mm

#2 

2,5g

19mm

#3

3,8g

20mm

These photos are way better, good job with them.

#2 is Constantinus II: N#454728 

For #3, it appear to have the same lettering as #1, so Constantius Gallus again. And with that S on the reverse, at the search results it can only be N#340487 .

Thanks again, man!