1-4 were four steam locomotives that operated on the Matheran Hill Railway, supplied by German engineering company Orenstein and Koppel.

[6] To navigate the tight curves on the MLR, the locomotives were fitted with an articulated wheel design, based on a patent by one John Clark in 1870.

[7] The design allowed for the rods to remain parallel to the engine at all times, while the wheels would follow the track's curves.

Out of the four Locomotives, only three remain in India, while the fourth has been transported to the UK in 1986, where it passed through multiple owners.

No.740 was the locomotive ferried to UK, and was acquired by Amberley Chalk Pits Museum.