Literature "The Work of Jean de Sperati", two volumes - text and plates published by the British Philatelic Society, second edition (1956), maroon binding in slipcase. Some binding wear from usage, contents in nice shape. This infamous forger's work is finally divulged in this important study by the Society. Also "La Philatelie sans Experts" by Jean de Sperati, 1946, 128 pages plus 6 plates, cardcover and "The Yucatan Affair; The Work of Raoul Ch. de Thuin, Philatelic Counterfeiter" published by APS, 1974, deluxe edition, 523 pages, hardcover with slipcase.