Wallis and Stevens Traction Engine No. 7683. Eileen. built 1919. this engine is typical of their Expansion gear Series. J. Salmon. Cameracolour

Traction Engine Series D. 225. Wallis and Steevens Traction Engine 7666. Built 1920. No. B.L. 8289. J.T. Saunders of Stotfold. Dennis. No. 11

Wallis and Steevens Traction Engine 7666. E. T. W. Dennis. Scarborough. Traction Engine Series

Wallis and Steevens. Compound Traction Engine. Merseyside Country Museum. Colin Richardson Printers

Traction Engine Series D. 218. Wallis and Steevens Patent Expansion Engine. Dennis. Collectors Item No. 2

Traction Engine Series D. 218. Wallis and Steevens Patent Expansion Engine. Dennis. Collectors Item No. 2

Traction Engine Series D. 218. Wallis and Steevens Road Locomotive. Collectors Item No. 5. Dennis

Wallis and Steevens Engine No 7683 Eileen. Salmon