sentences:  The original version of this set was a five-volume black-and-white edition that has become collectible at costs of approximately U.S.$10,000 because it was originally only available to large museums or major universities' art departments.The original black-and-white version was published in 1974 in four volumes and had a 1991 supplementary volume of additional paintings as well as drawings and pastels.The 1996 revised edition in multiple languages does not include pastels, drawings, letters or footnotes from the original edition.