Purchased as two four-wheel carriages in 1873 from the Metropolitan Carriage & Wagon Co., Ltd., of Saltley Works in Birmingham and later allocated fleet numbers A.11 and C.11, by 1882 these two carriages had become close coupled and were later mounted on a new steel underframe, again supplied by the Metropolitan Carriage & Wagon Co., Ltd., in 1921 to become F.74.  The carriage in this form survived in service until 1987 when it was withdrawn and moved into storage in the old carriage shed at Douglas Station.  When this was demolished in 1999 to make way for the Banks Circus office complex and bus depot, it was stored at various locations including the goods yard at Port St. Mary, Homefield Bus Garage and is currently in a hangar at Jurby Airfield.