Phil's interest in the collection is for lodging in the Oulton Park archive, but possible publication is being considered and he would be interested to gauge reaction before proceeding further. So far, I have seen about 90 of the photos and the quality is superb. They centre around personality and grid/pitlane shots, although there is track coverage too.
Here are a few as a sample

Stewart and Clark converse before the 1965 Gold Cup

Brabham, Tauranac and Honda mechanics 1965 Gold Cup

Graham Hill in John Coombs' Brabham 1965 Spring Trophy

Jackie Stewart in the H-16 BRM Spring Trophy 1967