Published by The Trustees of the British Museum, London, 1971, 1st edition. Card covers decorated with a recurring pattern of the letters SM in white within a brown lozenge shape (designed by Reynolds Stone). 9.75ins x 7.25ins, 64pp plus 14pp plates. Other illustrations within the text. The catalogue of an exhibition held at the British Museum July to October 1971. Spine slightly darkened else VG.