The PLM main line was progressively electrified from 1949 onwards, reaching Marseille in 1962. Marseille - Menton - Ventimiglia was completed 1965-1969. A lot of the PLM pacifics were transferred away to other regions of SNCF including the Nord. They certainly worked the Calais portion of the 'Train Bleu' to Amiens - and other boat trains including the 'Flèche d'Or.