This unique carriage was built by Gloucester Railway Carriage & Wagon Works, UK in the year 1914. The underframe was manufactured in Leeds Forge Co. UK. Built in typical Anglo-India style, this is a composite first class cum third class car, used on the Nilgiri Mountain Railway between Mettupalayam and Udhagamandalam (Ooty) in Southern India. The car is fitted with a double pinion on one of its axles, which could engage into the toothed rail which run between the two main rails. The rack and pinion section is between Kallar and Coonoor. This car could seat 8 passengers in the first class, and 44 in the third. Canvas curtains were provided for protection to the passengers from the elements. This type of carriages are still in use on the Ooty line with modified & modernized versions.