The SNCF Class C 61000 (+ TC 61100) diesel shunters were built by Compagnie Electro-Méchanique (CEM) between 1950 and 1953.
They were used for heavy shunting duties around Le Havre.
In addition, twelve slave units, numbered TC 61101-61112 were built, to provide extra power.
However, several have been preserved, and a few were sold to for further use with industry or the Paris Metro operator RATP.
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