RON WHEEKER'S MAJOR AND SIGNIFICANT WINCHCOMBE COLLECTION.

https://www.mallams.co.uk/auction/details/ox-modern-art--design/?au=50&pn=5&g=1

Scroll down the page. Ron Wheeler's collection starts after Lot 500 or so.
Ron Wheeler was a major collector of Winchcombe pottery, His collection was the main basis for the Winchcombe pottery hardback  book. Most of his collection was sold at Mallams Oxford in December 2022, on the death if his wife, As an overview of Winchcombe pottery it is well worth looking at.