For the 1873 opening of the Douglas-Peel line, the Railway Company purchased 29 four-wheel carriages designated as follows (although the numbering scheme was not applied until the arrival of bogies stock in 1876):-

A.1 - A.6              First Class

B.1 - B.10           Second Class

C.1 - C.10           Second Class (Four Were Braked)

E.1 - E.2               Luggage / Brake Vans

A.12                      Directors' Saloon

A further 27 four-wheel carriages were purchased for the 1874 opening of the Douglas-Port Erin line (similarly, the numbering scheme did not take effect until the arrival of bogey stock in 1876):-

A.6 - A.11                      First Class

B.11 - B.24                   Second Class (Ten Were Braked)

C.11 - C.14                  Second Classw

D.1 - D.2                      First / Second Composites

E.3 - E.4                       Luggage / Brake Vans

The first and second class vehicles were of a three-compartment design, fully enclosed for first class and composites, but open above seat back level for the all-second class vehicles.