https://brewminate.com/wp-content/up...Rome-Roman.jpg
https://i.pinimg.com/474x/e0/92/ec/e...eum-a-bowl.jpg
These illustrate what Cavafy was imagining. Neither is precise. I have not located right now my own photo of a Roman silver head whose features could be distinct enough for the poem, though Cavafy’s description of the body and pool are lacking.