An interesting observation by the photographer -
"He also spotted the very rare sight of the DRS class66s no's 66424 and 68301 double headed. The yearly flask train from Crewe Coal Yard to Keyham Dock Yard (DEVONPORT)."
Why would waste nuclear material be sent to a Naval Dockyard? and significantly only once a year. The schedules for all other shipments is very regular and all go from the Nuclear powerstations around the country to Sellafield for reprocessing!
Below are a couple of links to interesting reading on Sellafield and the so called reprocessing that happens there, or not.