Constantine I (307-337). AE Follis, Constantinople mint. D/ CONSTANTINVS MAX AVG. Rosette-diademed, draped and cuirassed bust right. R/ GLORIA EXERCITVS. Two soldiers standing facing one another, holding spear and resting on shield; between them, two standards; in exergue, CONSA•. RIC 73 or 80. AE. g. 2.41 mm. 17.50 RR. Very rare. Superb portrait. Lovely dark green-brown patina. Minor cleaning marks on reverse, otherwise EF.