Coltman was a British automobile manufacturer established in 1907 by H. Coltman & Sons, based in Loughborough, Leicestershire. The company produced vehicles until 1920, primarily focusing on conventional tourers. The Coltman tourer was powered by a 3704cc 20-horsepower four-cylinder engine, featuring dual ignition, a four-speed gearbox, and shaft drive. Its design included a round radiator that bore a resemblance to that of the…