Heraclius, with Heraclius Constantine, 610-641. Hexagram (Silver, 24 mm, 6.54 g, 7 h), Constantinople, 632-635. dd NN hERACLIUS ET hERA CONST P P A Enthroned draped and facing figures of Heraclius, larger and on the left, with a simple cross-topped crown, a short beard, and holding a globus in his right hand, and of Heraclius Constantine, smaller and on the right, with a simple cross-topped crown and holding a globus in his right hand; between their heads, cross. Rev. dEUS AdIUTA ROmANIS Cross potent on globe and three steps; in right field, K. DOC 64. MIB 140. SB 798. Some porosity, test punches, otherwise, very fine.
The hexagram was a short-lived large silver denomination that was produced in relatively large numbers under Heraclius, Constans II and Constantine IV; during the first reign of Justinian II limited numbers were produced but after that point the coin was only minted in extremely small numbers for ceremonial occasions.