nice one Norbold..you beat me to it!!
I have in the scrapbook the preview to the meeting... feast your eyes on this...
'WEST HAM CAN BEAT SPEEDWAY GIANTS'
A crowd of 60,000 is expected at West Ham tonight when the home riders meet Wembley in the opening stages of their Evening News London Cup tie (7.45pm).
Though West Ham are at the foot of the league table, they are the only London team to have defeated Wembley this season and are capable of gaining a good lead this evening.
It goes on to mention how things rested on the second strings Bob Harrison, Cyril Anderson and 'Buck' Whitby can rise to the occasion and back up the efforts of Eric Chitty, Malcolm Craven and Colin Watson.
Oh and for Cheetahawk, at the bottom of the article it says...
Tonights racing will be broadcast on the Light Programme from 8.45pm to 9.30pm
Somehow Norbold, I think you would enjoy going through these 1946 and 1947 scrap books... we shall have to meet at speedway somewhere so you can see them.