Thomson’s road steam engine

#Picture Number TR140

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Victorian illustration to download showing a picture of R W Thomson’s road steam engine pulling coal wagons. The engine’s thick rubber tyres protected by steel bars (patented 1867) could negotiate any kind of road surface without damaging the road or the engine, and the engine was used world-wide in coal mines and other industries. Robert William Thomson (1822-73), born in Scotland, also invented the pneumatic tyre.