Midi n° 2101. The 2101 class only get 2 units. It was an Herdner experiment to rebuilt the 2000 class as simple expansion locos with a 15 Atm. boiler and Lentz poppet valve gear. In 1912, 2101 and 2102 (ex Midi 2033 and 2004) were rebuilt again as 2 cylinders compounds with Schmidt superheater, larger HP cylinders, and piston-valves. Only 2101 was transferred to PO-Midi as 040-101, but it was scrapped in 1938. Toulouse (31). Photo P. Guérin. Collection Jean-Pierre Vergez-Larrouy (jean-pierre.vergez@tele2.fr)