Class 312/1. Unit 312119 in all over blue livery approaches Stratford on it's way to Chelmsford in June 1977. My 1974 Ian Allan shows these as numbered 701 thru 745 and this unit carries 719 in the front window. I believe this unit is now numbered 312799 in service with LTS Rail.
Photo by Michael Taylor (mtaylor6@home.com)
Website www.members.home.net/mtaylor6