I am not familiar with the class 306, but apparently it invokes considerable nostalgia among former commuters in South East England. Unit number 017 pauses at platform 3 (built by preservationists) at the East Anglian Railway Museum at Chappel and Wakes Colne on 20 July 2013.
Location: Chappel and Wakes Colne
Original line: Colchester, Stour Valley, Sudbury and Halstead Railway
Photographer: Ken Strachan
Contact photographer: Ken Strachan
Date: 20/07/2013
Image number: 45256