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John Hancock Center, Chicago, Illinois, Elevations
Skidmore, Owings & Merrill (American, founded 1936) Bruce Graham (American, born Colombia, 1925–2010) Fazlur Khan (American, born Bangladesh, 1929–1982)- Date
- c. 1965–1968
- Medium
- Ink and zip-a-tone on paper
- Dimensions
- 76 × 102 cm (30 × 40 3/16 in.)
- Department
- Architecture and Design
- Credit line
- Gift of Skidmore, Owings & Merrill LLP