Obverse:

EDWARD DI GRA REX [AN]GL Z FRANC. Facing crowned bust in tressure of arches, Lis on neck and pellets by crown.

Reverse:

POSVI DEVM ADIVTORE MEVM, CIVITAS LONDON. Long cross pattée dividing the legend, with three pellets in each angle. 

Good fine or better, dark (possibly artificial) tone. A very rare mule.