Bronze AE3, 17mm, 1.77gm, issued AD 337-340 Constantinople mint.
Obv: FL IVL HELENAE AVG, Bust of Helena, hair elaborately dressed, wearing ornamental mantle and necklace, right.
Rev: PAX PVBLICA• (CONS? in ex.), Pax, draped, standing left, holding branch in right hand and transverse sceptre in left hand.