Locomotives SFM 1-34 refers to a class of 2-2-2 steam locomotives of the Società Italiana per le Strade Ferrate Meridionali (SFM). They were designed for hauling fast passenger trains.
In 1885, with the creation of the great national networks, the series was divided between Rete Adriatica (the Adriatic Network - RA), which obtained units 1 to 26, and Rete Mediterranea (the Mediterranean Network - RM), which obtained units 27 to 34 and renumbered them 7 to 14.
In 1905, with the establishment of the Ferrovie dello Stato (FS), 12 units were still in operation. FS classified them as Class 100 with numbers 1001-1012. After a few years they were withdrawn and scrapped.