Helena. Augusta, AD 324-328/30. Æ Follis (18.5mm, 3.68 g, 6h). Thessalonica mint, 3rd officina. Struck AD 324. Diademed and draped bust right / Securitas standing left, holding olive branch in extended right hand; SMTSГ. RIC VII 134. Green and brown patina. EF.
From the John L. Cowan Collection Collection, purchased from Mike R. Vosper, 25 May 2011.