Constantius I as Caesar (293-305). AR Argenteus, Nicomedia mint. D/ CONSTANTI-VS CAESAR. Laureate head right. R/ PROVIDEN-TIAE AVGG. Four-turreted camp-gate open, with doors thrown back; each turret sormounted by facing eagle; in exergue, SMNΓ. RIC 21 (R4). AR. g. 3.21 mm. 18.00 RRR. Extremely rare and superb. Lovely light cabinet tone, with golden hues. Minor scratch on reverse, otherwise EF.