Undated drawing showing a six-coupled engine of the long-boiler type. One of the first engines of this type (the "Mammoth") was supplied to the Paris-Orleans Railway and became a standard type of goods engine in France. The design of the connecting rod big end strap is noteworthy. Description from A Century of Locomotive Building by Robert Stephenson & Co 1823-1923, J G H Warren, p 352. Drawing reference - 99.