Heraclius, AR Hexagram, 615-638, Constantinople. 6.46 g.

dd NN hERACLIUS Et hERA CONSt, Heraclius on left and Heraclius Constantine on right, seated facing on double-throne, each holding cross on globe in right hand, small cross above.
dEUS AdIUtA ROmANIS (sometimes ROIMANIS or ROMANIAS), Cross-potent on globe above three steps (no field marks). 

MIB 134; DO 61; SB 795.

With permission of Numismatik Lanz München auction 163, lot 508, Dec. 2016.