SF Encyclopedia Picture Gallery
Robert MacLaughlan MacDonald. The Rival Treasure Hunters: A Tale of the Debatable Frontier of British Guiana (London: Blackie and Son, 1910) [the dustjacket for this title is a monochrome reproduction of the full-colour boards: we have selected the latter: hb/Cyrus Cuneo]
Image courtesy of Clute Science Fiction Library at Telluride