I added some very nice Constantinian coins to my page: http://augustuscoins.com/index.html Crispus ALAMANNIA DEVICTA, Delmatius, Constantine II ROMAE AETERNAE, lovely anepigraphic Constantius II, Valens QVARTA. There are many other ancient coins of interest, including Greek and Byzantine. I invite you to look around the site. It also has some ancient-coin literature.
