Digging through some old stuff the other day, I found a TOPS readout of 5M20 1215 Motherwell - Red Bank on Friday 25 July 1980, which may be of interest. The consist on departure from Carlisle Yard was:
85004 Loco
80567 BR BG NAV
31183 LMS B NFV
31356 LMS B NFV
1719 SR PMV NQV
81313 BR BG NOV
81398 BR BG NAV
31393 LMS B NFV
86403 BR GUV NKV
80645 BR BG NAV
94762 BR CCT NPV
80796 BR BG NAV
86455 BR GUV NKV
80815 BR BG NAV
86411 BR GUV NKV
2537 SR CCT NQV
403 tons, vacuum braked. 15 vehicles, of which 5 were of pre-nationalisation design.
The TOPS codes mean
NA Bogie Brake, Gangwayed
NF Bogie Brake, Non-gangwayed
NK General Utility Van, BRUTE
NO Covered Carriage Truck
NQ Parcels & Miscellaneous Van
It's quite rare to come across this kind of information, so I thought I'd share it!