More note pourings here - you've started something now Jonny!
Even as late as April 23rd 1976 it was still possible to see 15 Westerns in a day at Reading -
1005/9/13/15/28/33/37/51/53/56/57/58/70/71/72 - most of those survived until pretty well the end of the year although 57 and 37 were only a week and month respectively away from their nemesis.
I hesitate to mention other power but 2 x 08, 13 x 31, 5 x 33, 2 x 37, 41 x 47, 22 x 50 contributed to 100 locos seen in approximately 8 hours. The proliferation of DE power shows the end wasn't too far off for the hydraulics but they sure as hell didn't go down without a fight. Most would have been on Class 1s and every departure, particularly in the up direction, was a sight and sound to behold. Not an HST to be seen!
Happy days
Phil
Edited to correct withdrawal date for 1028/37