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.
Rectangular slate dial on the easterly of the two chimneys, with a curve over the central section and two curves (each side) over the l and r sections. Upright numerals VI - VIIII (for 9am) - XII - IV - VI. May originally have been gilded.