6012129 Chicago: A Neighboring Oil Refinery from the Air (b/w photo) by American Photographer (19th century) (after); Private Collection; (add.info.: A Neighboring Oil Refinery from the Air. Illustration for Chicago, The Wonder City (2nd edn, Horder, 1930). At the back of the book, credit for the photographs is given to: Chicago Aerial Survey Co, Chicago Architectural Photographing Co, Kaufmann & Fabry Co.); by Look and Learn.