Share P & D Colnaghi & Co Ltd, London, Watercolour Drawings of Three Centuries from the Collection of Sir Bruce & Lady Ingram, 1956 1955 British Council Exhibitions Watercolour Drawings of Three Centuries from the Collection of Sir Bruce and Lady Ingram Colnaghi 1956 Related works Francis Towne Rhaeadr Ddu 1777 Favourite Rhaeadr Ddu