Disbanded sketchbook of cream medium-weight wove paper 292 x 242mm to which 67 drawings have been ascribed. None of the pages were numbered and many have been trimmed or cut down. Some pages bear felt-tipped pen studies drawn on tissue paper; it is not known whether these were mounted before or after the sketchbook was disbanded. Many drawings from this sketchbook were preliminary studies for the lithographs of 1966 and 1967.