Hi Healesc, welcome to the forum.
Lets try and date it shall we. There's a Ford transit and is it a Hillman Minx ? So it's possibly 1960's or 1970's.
There's no catenary in the picture, but I don't know how much of today's OHLE was already up in the 60s/70s.
Also it doesn't look like any route I've ever driven, so I'd be inclined to rule out South East London suburban lines (although I've only been driving since the 90's, so it could have been different then). NB, this doesn't contradict Gray, as Croydon is South Central lines !
Who's next ?
