I came accross this gem earlier today, I am not aware of having seen it before in this thread, but if it is a duplicate I apologise:
http://railwayherald.com/imagingcentre/view/267253/PL
Filthy Black 5, mixed blue/grey and maroon rake of Mk1's on the drawbar, flag bottom and bulkhead rail and semaphore signals at Preston in 1967, what more could you want?