Hi there! My mum recently came back from a trip overseas and brought me these coins from a market in Italy (not sure where exactly). I was hoping someone here may be able to identify them, and possibly give me a few tips on caring for them (assuming I shouldn't try to clean them, haha). Any help is appreciated, thanks heaps!
Those are all 4th-5th century Roman imperial coins. You'll need better pictures for better identifications. Try the folks on /r/numismatics.