Magnentius (350-353). AE Double Centenionalis, Ambianum mint. Obv. DN MAGNENTIVS PF AVG. Bare-headed, draped ad cuirassed bust right. Rev. SALVS DD NON AVG ET CAES. Large Chi-Rho, flanked by A and ω; in exergue, AMB•. RIC 36. AE. g. 9.30 mm. 26.50 R. Rare. A very attractive example. Reddish-brown patina with green spots. Good VF.