Roman coins 1 [επιλυμένο]

I just received a lot of 16 coins as a gift. I will try to identify them but my expertise with Roman coins is close to zero. So I am going to need your help.

1st coin.


1.90 g
2 cm diameter
Aurelianus?

2nd coin

1.94 g
1.5 cm diameter
The scan is not good but in hand I can clearly see on the obverse CLAUDIUS

3rd coin


1.97 g
1.8 cm diameter

The first one should be this one (or a quite similar one):
https://en.numista.com/catalogue/pieces44880.html

Ruler: Gallienus

The second one would be issued under the rule of Claudius II Gothicus if you read the claudius right.

The third is a late roman one most likely issued under the rule of Constans, Constantius II. The portraits of those late Roman coins mostly look very similiar so its hard to identify without beeing able to read the legend. But possibly an expert will post an more detailed help later

The third one is Valens, with a victoria on reverse, the legend would be SECVRITAS REIPVB(LICAE?). Mintmark seems to be SMHA (Heraclea) or SMNA (Nicomedia).

Thank you !