Delivered at a rate of four units per month between April and July 1960, vehicles were initially allocated to Plymouth Laira (LA) for services in Devon and Cornwall, West of Newton Abbott, and Bristol (BR) for Taunton area services. By 1965 some sets joined the 117s at Reading (RG), and by 1968 could also be found at Southall. By 1972 Cardiff had received it's first set.
The first image shows set L473 arrives at Bedwyn, with Newbury on the blind. W51315 is leading, taken in March 1975. Robert Frise Collection.
The second image shows B465 with a up Weymouth to Bristol approaching Witham (later East Somerset Jct), 27th October 1980, Neil Cannon.
The Branch Line Society's 'The Mayflower' tour resulted in the class visiting Moorswater... a photo of the British Telecom liveried set on the tour appears in Rail magazine No 61 Oct 1986 page 49 (thanks to John Williamson for this info).
During the late '80s, the surviving sets were allocated to Cardiff Canton (CF) and Birmingham Tyseley (TS).
The first withdrawal occurred with W51304 in 1985, the last vehicles left passenger service from TS in 1994.