Paul Decauville (1846-1922) was a French pioneer in light railways. His major innovation was the use of ready-made sections of light, narrow gauge track fastened to steel sleepers; this track was portable and could be disassembled and transported very easily. The first Decauville railway used gauge; Decauville later refined his invention and switched to and gauge. Starting in 1875, his company produced track elements, engines and cars. Those were exported to many countries, in particular to the… (More on Decauville)