Roman coins?

Hello everyone!
I inherited those coins from my great-grand-father many years ago, but I never found out what coins those are. But maybe Numista can help me in this case!
I flipped this coins headfirst for the 2nd photo.
Front-side Back-side
I flipped this coin sideways for the 2nd photo.
Front-side Back-side

I've also inherited many old french coins dating back until the 17th century, a chinese coin from around 1500 and a roman coin to worn to determine. Maybe those two coins are old too!

The first one appears to be Constantine II, but I can't see the letters very well underneath the campgate, which would allow for a more definitive identification. Can you determine what they are?

Цитата: "Steve27"​The first one appears to be Constantine II, but I can't see the letters very well underneath the campgate, which would allow for a more definitive identification. Can you determine what they are?

​I looked up Constantine II, I think you're right on this one but I can't find the exact same coin. I se one with the tower and him but they all have differences. Maybe it is unique?

The second one is a coin of Gallienus with PAX PVBLICA on the reverse (RIC 260). Easy to find on the Wildwinds page.