Hollyer photos of G.F. Watts paintings
As is well know, Frederick Hollyer (1837-1933) the photographer, made many photographs of works of art, principally of the Pre-Raphaelites and also G.F. Watts. I note that as part of the Open Library project, a book of Watts's paintings is now on the web, ilustrated by Fred's photos.
See http://openlibrary.org/details/masterpiecesofgf00watt