 The first series, 70 locomotives, numbered 140-101 to 140-170 were built in France by 
Schneider et Cie. at Le Creusot, SACM at Belfort, and Fives-Lille.These were built and were put into service in 1913.The declaration of war in 1914 forced the Chemin de fer de l'État to entrust the construction of the second series of 200 locomotives to Nasmyth, Wilson and Company of Manchester and North British Locomotive Company of Glasgow.