SF Encyclopedia Picture Gallery
Eric R Owen. Dr Zollinoff's Revenge: a Mystery and Detective Novel (London: The Modern Publishing Company, 1937) [publication date suggested by 1937 ownership inscription date on held copy: also given in the 1937-38 International Motion Picture Almanac (anth 1937) edited by Terry Ramsaye: hb/uncredited]
Image courtesy of Clute Science Fiction Library at Telluride