[1] Boiling is achieved by circulating the combustion gases in multiple 'fire tubes' passing through the heating body, significantly increasing the thermal exchange surface and efficiency.

[2] Marc Seguin patented this invention on December 12, 1827, and it was initially applied to boats navigating the Rhône River.

[3] The locomotive first ran on October 1, 1829, just a few days before George Stephenson's Rocket, with whom Marc Seguin maintained continuous communication.

It was used on the second French railway line, connecting Saint-Étienne to Lyon from 1830 to 1832, where it started passenger service in 1831.

[citation needed] A replica of the locomotive was built between 1982 and 1987 by Gaston Monnier, a mechanical engineering professor at a technical high school in Paris and the founding president of ARPPI (Association for the Reconstruction and Preservation of Industrial Heritage).