![File:Grill of an elevator cage from the Chicago Stock Exchange, Louis H. Sullivan designer, 1893-1894, wrought iron with cast iron details - Krannert Art Museum, UIUC - DSC06555.jpg - Wikimedia Commons File:Grill of an elevator cage from the Chicago Stock Exchange, Louis H. Sullivan designer, 1893-1894, wrought iron with cast iron details - Krannert Art Museum, UIUC - DSC06555.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/2/23/Grill_of_an_elevator_cage_from_the_Chicago_Stock_Exchange%2C_Louis_H._Sullivan_designer%2C_1893-1894%2C_wrought_iron_with_cast_iron_details_-_Krannert_Art_Museum%2C_UIUC_-_DSC06555.jpg)
File:Grill of an elevator cage from the Chicago Stock Exchange, Louis H. Sullivan designer, 1893-1894, wrought iron with cast iron details - Krannert Art Museum, UIUC - DSC06555.jpg - Wikimedia Commons
![33 Robert Downey Jr Rings The Nyse Opening Bell In Celebration Of Iron Man 3 Stock Photos, High-Res Pictures, and Images - Getty Images 33 Robert Downey Jr Rings The Nyse Opening Bell In Celebration Of Iron Man 3 Stock Photos, High-Res Pictures, and Images - Getty Images](https://media.gettyimages.com/id/167800606/photo/actor-robert-downey-jr-and-the-comic-book-character-iron-man-ring-the-opening-bell-in.jpg?s=612x612&w=gi&k=20&c=wn8LJO6gB2B23gVxK_C3g-E6nn2RaumUsN2JAWBYNq0=)
33 Robert Downey Jr Rings The Nyse Opening Bell In Celebration Of Iron Man 3 Stock Photos, High-Res Pictures, and Images - Getty Images
![Market movers: Market Movers: Metals get reality check as iron ore shipment halves - The Economic Times Market movers: Market Movers: Metals get reality check as iron ore shipment halves - The Economic Times](https://m.economictimes.com/thumb/msid-91185916,width-1200,height-900,resizemode-4,imgsize-624482/market-movers.jpg)
Market movers: Market Movers: Metals get reality check as iron ore shipment halves - The Economic Times
![museum quality 19th century louis sullivan-designed ornamental cast iron chicago stock exchange office door knob and monogrammed backplate museum quality 19th century louis sullivan-designed ornamental cast iron chicago stock exchange office door knob and monogrammed backplate](https://www.urbanremainschicago.com/pub/media/catalog/product/cache/3203d2c87f2714877bf0ec82a30f87f7/2/0/20210205-4v0a5893.jpg)
museum quality 19th century louis sullivan-designed ornamental cast iron chicago stock exchange office door knob and monogrammed backplate
![Louis H. Sullivan (Designer). Chicago Stock Exchange Bank of Five Elevator Grilles with Four Plates. 1894. United States. Cast iron, wrought iron, and copper-plated cast iron Stock Photo - Alamy Louis H. Sullivan (Designer). Chicago Stock Exchange Bank of Five Elevator Grilles with Four Plates. 1894. United States. Cast iron, wrought iron, and copper-plated cast iron Stock Photo - Alamy](https://c8.alamy.com/comp/2AHRWCM/louis-h-sullivan-designer-chicago-stock-exchange-bank-of-five-elevator-grilles-with-four-plates-1894-united-states-cast-iron-wrought-iron-and-copper-plated-cast-iron-2AHRWCM.jpg)
Louis H. Sullivan (Designer). Chicago Stock Exchange Bank of Five Elevator Grilles with Four Plates. 1894. United States. Cast iron, wrought iron, and copper-plated cast iron Stock Photo - Alamy
![People attend a ceremony marking the opening of iron ore futures to foreign investors at Dalian Commodity Exchange in Dalian city, northeast China's L Stock Photo - Alamy People attend a ceremony marking the opening of iron ore futures to foreign investors at Dalian Commodity Exchange in Dalian city, northeast China's L Stock Photo - Alamy](https://c8.alamy.com/comp/W6BYF4/people-attend-a-ceremony-marking-the-opening-of-iron-ore-futures-to-foreign-investors-at-dalian-commodity-exchange-in-dalian-city-northeast-chinas-l-W6BYF4.jpg)
People attend a ceremony marking the opening of iron ore futures to foreign investors at Dalian Commodity Exchange in Dalian city, northeast China's L Stock Photo - Alamy
![c. 1894 original and completely intact interior chicago stock exchange commercial building ornamental cast iron staircase c. 1894 original and completely intact interior chicago stock exchange commercial building ornamental cast iron staircase](https://www.urbanremainschicago.com/pub/media/catalog/product/cache/3203d2c87f2714877bf0ec82a30f87f7/2/0/20140415-031a_2.jpg)