The first volume of this historical review of French railways Mikado 141R steam locomotives, used on long distance express trains before electrification. This first volume looks at the locomotives basic in the North and East regions of France. Features a detailed look at the history of the class, a look at the main depots for the class as well as examining routes on which the locomotives worked. Also includes allocation details, technical information, diagrams and plenty of black & white photographs. French text.