Metropolitan-Vickers Electrical Co Ltd & English Electric Company test specifications

The box contains 14 Metropolitan-Vickers Electrical Co Ltd and English Electric Company Limited test and resistance specifications for Wolverton Testing Equipment, Polish State Railways, Córas Iompair Éireann, Sudan Government Railways, Pakistan Eastern Railway, East African Railways & Harbours, British Rail Southern Region, Ghana Railways and Harbours, Northern Ireland Railways, Jamaican Government Railway and Rhodesia Railways.