Byzantine coin of Constantine IV, 668-685. Obverse: bust of Constantine IV, facing forwards with his head turned slightly to the right; he wears a helmet and holds a spear behind his back; to right, he holds a shield. Reverse: large ‘M’; above, cross.

Byzantine coin of Constantine IV, 668-685. Obverse: bust of Constantine IV, facing forwards; he wears a cuirass and helmet. Reverse: large ‘M’; to left, ‘ANN[O]’ in a vertical position; above, cross; beneath, ‘E’; in exergue, ‘CON’. Coin has been overstruck.

Byzantine coin of Constantine IV, 668-685. Obverse: bust of Constantine IV, facing forwards; he wears a cuirass and helmet; to left, he holds a globus cruciger; to right, he holds a shield; to left, inscription says ‘NCONSTA’; to right, it is illegible. Reverse: large ‘M’; to left, bust of Heraclius, brother of Constantine IV; to right, bust of Tiberius, another brother of Constantine IV; both brothers wear a crown with a cross and a chlamys, and each holds a globus cruciger in their right hand; above ‘M’, cross; beneath, ‘E’; in exergue, ‘CON’.

Byzantine coin of Constantine IV, 668-685. Obverse: bust of Constantine IV, facing forwards, wearing a crown with cross; to left, he holds a globus cruciger; to right, ‘K’. Reverse: large ‘K’; to left, ‘N’; to right, ‘N’; above, cross.

Byzantine coin, most likely from the seventh century CE. Obverse: bust of a ruler, facing forwards; to left, inscription says ‘NO’; to right, it is illegible. Reverse: large ‘K’; to left, ‘[A]NNO’ in a vertical position; to right, ‘I’. Collector’s envelope suggests both Constantine IV and Constantine V for this coin.

Byzantine coin of Constantine IV, 668-685. Obverse: bust of Constantine IV, facing forwards, wearing a helmet and cuirass; he holds a spear behind his back; to right, he holds a shield; to right, there is also a ‘K’. Reverse: large ‘K’; to left, ‘ANNO’ in a vertical position; to right, ‘CON’ in a triangular formation; above, cross; beneath, ‘B’.

Byzantine coin of Constantine IV, 668-685. Obverse: bust of Constantine IV, facing forwards, wearing a helmet with plume and cuirass. Reverse: large ‘I’; to right, ‘K’; above, cross; in exergue, ‘CON’.

Byzantine coin of Constantine IV, 668-685. Obverse: bust of Constantine IV, facing forwards, wearing a helmet with plume and cuirass; to left, he holds a globus cruciger. Reverse: large ‘I’; to left, cross; to right, ‘K’; above, cross; in exergue, ‘CON’.

Byzantine coin of Constantine IV, 668-685. Obverse: bust of Constantine IV, facing forwards, wearing a helmet with plume and cuirass; to left, he holds a globus cruciger. Reverse: large ‘I’; to left, cross; to right, ‘K’; above, cross. Coin has been overstruck.

Byzantine coin of Constantine IV, 668-685. Obverse: bust of Constantine IV, facing forwards, wearing a helmet with plume and cuirass; to left, he holds a globus cruciger. Reverse: large ‘I’; to left, cross; to right, ‘K’.