Constantius I Chlorus caesar, 293 – 305. Aureus circa 298-299, AV 5.20 g. CONSTAN – TIVS CAES Laureate head r. Rev. PROVIDE – NTIA AVGG Camp gate with three forward turrets; behind, two small turrets between two towers; in exergue, P R. C 239. RIC 6a. Depeyrot 12A/3. Calicó 4869. Extremely rare and possibly the finest specimen known. Perfectly struck in high relief, virtually as struck and almost Fdc Provenance Sold by Numismatica Ars Classica, Zürich, auction 46, 2 April 2008, lot 692.