It was originally used by the construction company of the Fréjus Rail Tunnel for the haulage of works trains. On completion of the work in 1871, it passed to the SFAI, which numbered it 1400. In 1885, when the great national networks were created, the locomotive passed to the Rete Mediterranea, where it took the number 5101. In 1905, on the nationalization of the railways, it entered the stock of the Ferrovie dello Stato (FS), which placed it in Class 800 with the number 8001. Curiously, the other engine in the class, 8002, was completely different, being a more powerful engine with a separate tender.