BRIDOL is the British Sundial Society's Register of Fixed and Mass Dials, which gives detail and photographs of about 8000 fixed sundials and 3000 mass dials in the UK.
Some of these are in private gardens, but the majority are publicly available.
In the Memorial Garden and mounted on a clay chimney pot is a bronze horizontal dial by R. Gwinnell. It is a memorial dial inscribed ’In memory of Benjamin Raymond Oppenheimer. 14.3.1971 - 20.4.1973’ within a floral band. It shows the hours V - VII divided into halves and quarters and there is a noon gap. It has a 4-point compass rose. Its most strikuing feature is that the gnomon is in the form of a butterfly the straight front edge of its raised wings casting the shadow.
