An aerial view looking northeast over Chicago's Loop captures the city at its interwar architectural peak — the Merchandise Mart, then the largest building in the world by floor space, dominates the foreground above the Chicago River, with the full downtown skyline stretching to the horizon. Issued as an official souvenir of A Century of Progress, the 1933–34 World's Fair that drew nearly 49 million visitors despite the Depression.

• Caption: "40 AIR VIEW, LOOKING NORTHEAST FROM CHICAGO'S LOOP."
• Publisher: Cardinell-Century Official Photographers, Inc. — A Century of Progress 1933
• Status: Unposted