England, Plantagenet Kings. Edward III. 1327-1377. AR half groat (22.5 mm, 2.05 g, 12 h). London mint, Pre-treaty class 1, mm: broken cross. +CDWARDVS'· REX· ANGL· Z· FRACI·, crowned bust facing / +POSVI ·DEVM· ADIVTORE MEV / LON DON EIVI TAS, long cross, trefoils in quarters. SCBC 1575 var; North 1154 var. aVF, toned.
An interesting die engraver's error, switching the E of Edwards with the C of Civitas.