Part of the collection of photos I have acquired - the Arthur Siddall Album - through Duncan Fox and Eddie Dowding photos given to me in the 1970's show quite a few from the Winter Trial usually held around August -
Initially I thought from the same event in 1945 or 1946 - but with a bit of work - looking at the notes on some photos and the number plates on the cars have determined they are from both 1945 -cars with the white letter Black Plates and 1946 cars with dark letters on Yellow Plates.
These from 1945 - my Uncle Ed in the Riley came 3rd [ dark plates the 1941 - 1945 issue with a diamond as the central mark - and muddy too ]
Winner was Ron Roycroft, second was Vern Clarke, Ed Dowding 3rd and Ces Hodge in 4th.
Ed in the Riley - next to a Singer - Ken Hemus [ photo re-posted ]