Invention and Engineering
Est 4401 to 4512 were a class of Mikado (2-8-2) tank locomotives which were designed for service on the Paris suburban lines of the Compagnie des chemins de fer de l'Est. The Est placed them in power class (série) 11s. On nationalisation in 1938 they passed to the SNCF, who renumbered them 1-141.TB.401 to 1–141.TB.512.
2-4-0.
Electric arc furnace.
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