PERCEAU, Louis. Bibliographie du Roman Érotique au XIXe Siècle, Paris, 1930, 2 vols., 8vo, limited to 1050 copies, later half morocco -- READE, Rolf S. Registrum Librorum Etoticorum, London, privately printed for subscribers, 1936, 2 vols. 4to, number 191 of 200 copies on hand-made paper, original cloth with morocco labels. (4)