On a milk train, I wonder if was Welsh or West country milk? Peter Kerslake says My old Shedbook shows 5939 Tangley Hall to have been allocated to 81A (Old Oak Common ) in the years prior to this view, so that dosen't help much in determining where this working is heading, unfortunately ! Also, I wonder whether this is this a fully loaded milk train or empty wagons heading home, as again my own pictures from here at Reading General do not assist, even with the distinctive buildings shown in the background . Nil out of ten for my effort on this one, I think, but it's a nice picture, nevertheles !