Tesorillo is the best for identifying late roman coins. Here's the link to the main place. Click on “Types of reverses” and click on the one that matches your coin. (It doesn't have to match exactly) Then it will give you info on who made those coins and when they were made. It also gives you pictures of what the guy on the front looks like. If one of those pictures matches your coin, then that's your type of coin. Here's the link. https://www.tesorillo.com/aes/index.htm