[EROTICA -- PHOTOGRAPHY]. HARTWICH, Dr. Alex, Gina KAUS and Dr. Alfred KIND. Die Braunacht: Eine Ethnologisch-Kulturgeschichtliche und Sexualphysiologische Schilderung. Wien, 1931. Large 8o. Illustrated with reproductions of erotic drawings, engravings; photographs in half-tone and gravure after works by Perckhammer, Willinger-Lechner, Manasse, Schein and others. With 6 MOUNTED PHOTOGRAPHIC PRINTS of erotically-posed brides on their wedding nights (both "before" and "after") in a facsimile "wedding album" at the end of the volume. Original gilt-decorated green cloth (slightly shaken).