All are Rome mint 193-196 AD period denarii. All are middle grade so you won't be tempted to prefer one over the other because of condition. It is sometimes possible to see two dies cut in a style that suggests both were cut by the same hand. All are legionary types . The mint often employed more than one die cutter.
Some early issues show a portrait style that resembles a previous emperor.
I believe the first two on the left were the work of the same hand while the middle pair match each other but were different from the first pair. The fifth coin has some features resembling Pertinax while the last coin on the right looks a bit like Didius Julianus. Again, these are matters that can not be proven from mint records and are of interest to a small minority of collectors who collect coins by 'style'. Back to Main page Questions or comments appreciated.