length and converted for use as Royal Mail parcels units, with the addition of bodyside roller shutter doors, and repainted in Royal Mail red livery. Units 302996-998 were also reduced to three-car length and used as departmental sandite rail treatment units, later being reclassified as Class 937. Parcels Units Departmental Sandite Units Liveries When introduced, the units were outshopped in plain BR EMU suburban green livery with the early lion and wheel crest on the MBS. In 1962 a small yellow end became mandatory for all units. In the mid 1960's BR Rail Blue, also known as Monastral blue, was applied to 112 members of the fleet and from 1968 a full yellow end now became mandatory to increase visibility for permanent way staff on the track. From 1982, when refreshed units were released from the works, they were painted in the then standard BR blue and grey livery. 302217 was the first member of the class to receive Network SouthEast Livery by 1987, being the sole example until 1990–1993 when NSE livery was applied to the 30 remaining class members. Un-refurbished unit 302207, later renumbered to 302200, received the original green livery with a small yellow panel in 1987. Preservation Two driving trailers, 75033 and 75250, which belonged to units 302 201 and 302 227, are preserved at Mangapps Railway Museum near Burnham-on-Crouch, Essex. These units have been repainted into BR overall blue with yellow ends and are still in very good condition, with the destination scrolls still in working order, the seats still in British Rail colours and the Network South East maps still in very good condition. The rest of the fleet has been scrapped since withdrawal in late 1999. References Further reading External links Class 302 general overview on Class 310 site BW Photo of unit no. 298 at Barking c. 1964 302 Train-related introductions in 1958 25 kV AC multiple units