Wow!!. Jut home but couldn't miss the opportunity to thank everyone for their input.
Simon - wonderful weather, low winds, four black bream to me (actually six, but I put two back), otherwise, on the same boat, conger eels, the biggest starry hound of the year so far, returned to the water, a lobster (yes, really, on rod and line) which also went back, a plaice, a dab, numerous dogfish and pout whiting, also returned and a starfish. Frabjous day!
Dave - extremely helpful and Larry for additional info. I've had a memory fade - not too unusual nowadays. I wonder whether I did actually see any Oerlikon units as I've clearly confused the two types. I just remember (again, early spotting days) the electric units with manual sliding doors which I think were the Oerlikons, but my belief and memory suggested that the later LMS units didn't have the grills/louvres on the sides of the motor cars but I am clearly wrong. I'll study these photos a bit more carefully. However, that newly outshopped vehicle suggests really early 60s - maybe late 50s - which fits with a lot of the other stuff.
As for P, R and Q stock. I was confident that you'd clarify were we are with these, and you've not disappointed!
Tony - really helpful info. I had a contact with the GE society over another collection and the info I received from them was nothing short of miraculous. Whenever appropriate or of potential interest please pass these on to the GE society for further comment. There may be more to come but I'd not guarantee it. In any event the info on the GE electrification is both fascinating and pertinent.
All in all these pictures are possibly of more interest and value than I'd ever have realised. Let's get them all published on WT and I'll then be interested to see if they are important enough to be preserved in a more widely available collection. I'm now even more sad that the original negatives appear to be lost.
Brian