England, Edward III, 1351-1352 (reigned 1327-1377), AR groat (16x17mm). Tower mint. Fourth coinage, Pre-treaty period, 

Obv. EDWARD DI G REX ANGL Z FRANC D HYB, crowned bust facing with trefoil of chest.
Rev. POSVI DEVM AVDIVTORE MEV CIVITAS LONDON in two lines around long cross and trefoil of dots in angles. 

Seaby Spink 1565 (this coin); North 1147