British Railways

Blackstone & Co Ltd

Ruston 88 DS locomotive

British Rail Western Region

Gresham & Craven Ltd for Malayan Railways

Self-Changing Gears Limited

Davies & Metcalfe Limited

Westinghouse Electric & Manufacturing Company

Westinghouse Rosebery Pty Limited

Westinghouse Brake & Signal Co Ltd

Quincy, Illinois

The Pyrene Company Limited

Yorkshire Engine Co Ltd

North British Locomotive Co Ltd

General Electric