Description of the Lagny type locomotive
These locomotives, of Fives-Lille construction, belonged to the manufacturer's type 65 and had an interior chassis. Their boiler had a bulky dome on the front shell and the balance valves were mounted on the flat hearth. The fire box was of the Crampton type. The outer cylinders attacked the third axle, favouring yawing movements aggravated by a reduced wheelbase of 1,720 m. The flat drawers were governed by a Stephenson's two eccentric and slide distribution.
They had no shelter and the water boxes extended to the front of the machine, which gave them a very special look.
As soon as they entered the C.F.D. park, the Villeneuve-le-Comte workshops installed a shelter with two portholes protected by visors at the front and rear. The primitive Giffard injectors were replaced by Friedman injectors during their lifting.
They were painted black and had polished brass licence plates at the base and on either side of the chimney. A plate bearing the name "L'Anguille" for No. 2 and "La Seine" for No. 4 was fixed on their sides at the height of the steam intake dome. The company had its initials painted on the front and rear crossbeams in white on a vermilion red background on either side of the central stamp on No. 2, No. 4 having been given to the Seine-et-Marne Department in 1902 because of its poor condition. It should be pointed out that until that date these machines were equipped with the double buffer system and that it was only when the final equipment arrived that the central buffer was used.