BR J68 68646 was built in September 1912, part of the first batch of A.J Hill’s improved C72 Class, the final development of Holden’s 0-6-0T classes. First numbered as 50 under the GER, then 7050 under the LNER, 68646 spent its life working the ‘classic’ Buckjumper suburban services out of Stratford shed; firstly, on the Enfield Town and Chingford ‘Jazz’ services and then in places such as North Woolwich, Palace Gates and Blackheath. 68646 was, along with 68649, the only J68 to receive the ‘late’ British Railways crest.