Heraclius (610-641) AR Hexagram (Silver, 6.40g, 24mm) Constantinople 615-638
Obv: ddNN hERACLIUS ET hERA CONST, Heraclius and son facing, crowned and draped, each holding globus cruciger
Rev: dEUS AdIUTA ROMANIS, cross potent on globe on three steps; I in left field.
Ref: Sear 796.