Alan Rintoul

I have a nice colour pic of class 29 D6107 in ex works blue livery which states on the back that it was taken at Carlisle Kingmoor in August 1967. I cannot say for sure that it is Kingmoor, but it is certainly a steam depot. Assuming that it is indeed Kingmoor, is it possible that D6107 wrked via the Waverley Route with a relief train from perhaps Dundee to Morecambe or Blackpool? The loco displays a 1Z headcode indicating a special or relief train? I know that traction knowledge would have been an issue, but that would have been the same regardless of what way the train was routed. Anybody got any ideas?

Gloucester class 100 MBS car no. SC51117 ran in blue with small yellow panel until 1973. I cannot recall any of the DTC cars in this livery.