Great finds!

Will they be recorded at the P.A.S. ?
The first one looks to be an AE3 of Constantine I,
Trier mint (for that altar type, Helvetica 5a)

The second coin looks to be an AE As of Claudius,
Ceres reverse.

Third one looks to be an AE3 of Constantine II, as Caesar, "
Gloria Exercitus" two Standards, type.