The SNCF locomotives BB 1321 to BB 1324 were a class of 1500 V DC 4 axle electric locomotives originally built for the Chemin de fer de Paris à Orléans in the 1920s.[1]
After incorporation into SNCF the locomotives were used for shunting duties after the late 1940s.[2]
Davies, John. Chemins de fer du Midi and Chemins de fer de Paris à Orleans Locomotive List 1840–1938. Woodbridge, Queensland: Dr. John Davies. p. 199. ISBN0-9585541-0-2.
Jacques Defrance (1978) [1969]. Le matériel moteur de la SNCF. La Vie du Rail.