Egypt, Alexandria. Constantius I as Caesar, 293-305. Tetradrachm. (Billon, 19.80 mm, 6.82 g). Dated RY 4 = AD 295/6. ΦΛA KωCTANTIOC K Laureate, draped and cuirassed bust right. Rev. Enthroned Athena seated left wearing Corinthian helm, holding in her right hand a winged crowning Nike and in her left a sceptre; upwards right, six-pointed star and L Δ (date) in field. Geissen -. Dattari-Savio Plate 289, 6037 (this coin). Emmett 4173. Extremely Fine. Ex Giovanni Dattari collection. Ex Naville Numismatics Ltd., Auction 40, 27.05.2018, lot 438. In this rare and splendid tetradrachm, too, from the famous Dattari collection, the rough portrait of Caesar Constantius presents a realistic physiognomic profile also favoured by the enviable condition of preservation of the coin with its high and sharp relief. The Athena of the reverse, solemnly seated on her throne, sumptuously clothed and equipped with all the canonical divine attributes, watches over the rulers of the Tetrarchy constantly engaged in defending the borders of the empire.