017984 Ind_22 Steam locomotive of the South Indian/Southern railway Nilgiri Rack Railway. 0-8-2T Metre gauge.
Abt system (rack and pinion). X class number 7 (laterX-37385). Runs btwen Coonoor and Mettupalayam. 4-cylinder compound, 2 high pressure cylinders drive the wheels, 2 low pressure cylinders drive the rack. Built by Swiss Locomotive & Machine works, Winterthur, 1920, works number 2734. Delhi, Naionalt Railway Museum. 28 October 2000