I have to say this is an extremely interesting and poignant thread with some great photos.
I remember going to Guide Bridge in the early 80's when I was about 6 or 7 and spending hours watching the endless procession of freights - mainly 25's, 40's, and 76's.
I also remember Wath and Dinting and walking through rows of withdrawn 76's.
Looking forward to more photos being added.