ROMAN IMPERIAL COINS, Roman Imperial Coins, Third-Siliqua, c. 332-40, Constantinople, helmeted and draped bust of Roma left, rev. large p, 0.95g/12h (Kent, ‘Urbs Roma and Constantinopolis Medallions at the mint of Rome,’ in Essays Presented to Humphrey Sutherland, Scripta Nummaria Romana, pl. 13, 29; Vagi 3039). Bright appearance, very fine and very rare (£250-300)