HMF 2698 and HMF 2699 were drawn in the ICA Visitors Book 1950-65 at pages 10 and 11, and dated by Moore 10 December 1950, two days before the official opening of the I.C.A at Dover Street.

Henry Moore signed the book on page 5. In addition to 38 drawings by major artists' including Pablo Picasso, Graham Sutherland, Saul Steinberg, Jean Dubuffet, Man Ray, Ben Shahn, Sidney Nolan, Ad Reinhardt and Joan Miró, there are over 300 signatures and dedications from poets, architects, musicians and writers.