At the beginning of the 20th century, the Union Stock Yards in Chicago were considered to be a paragon of the modern enterprise.
Joseph Koehler: Union Stock Yards, Chicago, colour postcard, 1942; source: Chicago Postcard Museum, Nr. 2406L, http://www.chicagopostcardmuseum.org/images/hold_to_light/HTL_2406L_Koehler_Union_Stock_Yards_Chicago_F.png.