This has been around since the mid 70's. I don't know much about trains or train sets so i have used the 'hornbyguide' site to cross reference information.
Diesel Locomotive - British Railways - Green / Yellow D6514
Class 29 (Type 2) Bo-Bo Locomotive - British Railways - Blue / Yellow 6124
BSK Brake 2nd Corridor - British Railways - Red / Yellow 34100
BSK Brake 2nd Corridor - British Railways - Red / Yellow 15215
N.C.B. Mineral Wagon - Black 3471
LMS 20t Brake Guards Van Wagon 730386 R.0908
Stone Mineral Wagon RN: B385760
Numerous bits of track, power pack, etc.
Any questions feel free to ask.