Set of 4 books on jewelry including: - Michael Poynder, The Price Guide to Jewellery 3000 B.C - 1950 A.D, published by Antique Collectors' Club Ltd, England, 1976 - Catalog of part of the de Grisogono Bijoux et Objets d'Art collection - Gilles Néret, Ces bijoux qui font rêver, éditions Solar, Spain, 1990 - Le dictionnaire égoïste de Lorenz BÄUMER - My own Dictionary, éditions de La Martinière, Paris, 2007 (As is)