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 Image: Title: Subject.TGM: Description:

1. Cloud Gate, fabrication, December 17, 2002 Cloud Gate, fabrication, December 17, 2002 Steel; Marks (Symbols) Close-up of a steel plate marked with a grid and notations.

2. Cloud Gate, fabrication, December 17, 2002 Cloud Gate, fabrication, December 17, 2002 Steel; Structural frames; Hoisting machinery; Marks (Symbols); Industrial facilities; Workers position a steel plate into the roller.

3. Cloud Gate, fabrication, December 17, 2002 Cloud Gate, fabrication, December 17, 2002 Steel; Marks (Symbols) Close-up of a steel plate marked with grids and notations at Performance Structures Inc. (PSI).

4. Cloud Gate, fabrication, December 17, 2002 Cloud Gate, fabrication, December 17, 2002 Steel; Marks (Symbols); Close-up of markings on a steel plate at Performance Structures Inc. (PSI) in Oakland, California.

5. Cloud Gate, fabrication, April 21, 2003 Cloud Gate, fabrication, April 21, 2003 Steel; Structural frames; Marks (Symbols); Machinery; Machine shops; Industrial facilities; A steel plate in the fabrication shop at Performance Structures, Inc. (PSI).

6. Cloud Gate, fabrication, test weld, April 22, 2003 Cloud Gate, fabrication, test weld, April 22, 2003 Steel; Welding; Marks (Symbols); Close-up of a test weld with notations.

7. Cloud Gate, SBC Plaza, February 13, 2004 Cloud Gate, SBC Plaza, February 13, 2004 Concrete; Holes; Marks (Symbols); Close-up view of freshly drilled holes in the concrete of SBC Plaza.

8. Cloud Gate, SBC Plaza, February 16, 2004 Cloud Gate, SBC Plaza, February 16, 2004 Concrete; Bolts & nuts; Marks (Symbols); Shadows; Anchor bolts were sunk into SBC Plaza in preparation for installing the sculpture.

9. Cloud Gate, SBC Plaza, February 16, 2004 Cloud Gate, SBC Plaza, February 16, 2004 Concrete; Bolts & nuts; Marks (Symbols); Close-up view of anchor bolts that were sunk into SBC Plaza in preparation for the installation of the sculpture.

10. Cloud Gate, SBC Plaza, February 16, 2004 Cloud Gate, SBC Plaza, February 16, 2004 Concrete; Bolts & nuts; Marks (Symbols); Close-up view of anchor bolts that were sunk into SBC Plaza in preparation for the installation of the sculpture.

11. Cloud Gate, SBC Plaza, February 17, 2004 Cloud Gate, SBC Plaza, February 17, 2004 Concrete; Bolts & nuts; Marks (Symbols); Close-up view of anchor bolts that were sunk into SBC Plaza to support the sculpture.

12. Cloud Gate, SBC Plaza, ca. March 3, 2004 Cloud Gate, SBC Plaza, ca. March 3, 2004 Concrete; I-beams; Scaffolding; Structural systems; Marks (Symbols); Poly-foam cubes alongside the base of the sculpture.

13. Cloud Gate, SBC Plaza, ca. March 3, 2004 Cloud Gate, SBC Plaza, ca. March 3, 2004 Concrete; I-beams; Bolts & nuts; Marks (Symbols); Close-up view of an I-beam below the base of the sculpture.

14. Cloud Gate, SBC Plaza, ca. March 3, 2004 Cloud Gate, SBC Plaza, ca. March 3, 2004 Concrete; I-beams; Structural systems; Trusses; Scaffolding; Skyscrapers; Marks (Symbols); Looking northwest toward I-beams below the base of the sculpture. The sculpture is located on a load-bearing wall which separates two rooftops of different heights.

15. Cloud Gate, SBC Plaza, March 16, 2004 Cloud Gate, SBC Plaza, March 16, 2004 Snow; Marks (Symbols); Close-up view of rebar at SBC Plaza during its construction. Rebar, or reinforcing bar, is put in place before the concrete is poured. The resulting reinforced concrete is stronger and more durable than...

16. Cloud Gate, SBC Plaza, March 16, 2004 Cloud Gate, SBC Plaza, March 16, 2004 Snow; Marks (Symbols); Close-up view of rebar at SBC Plaza during its construction. Rebar, or reinforcing bar, is put in place before the concrete is poured. The resulting reinforced concrete is stronger and more durable than...

17. Cloud Gate, SBC Plaza, March 16, 2004 Cloud Gate, SBC Plaza, March 16, 2004 Snow; Marks (Symbols); Close-up view of rebar at SBC Plaza during its construction. Rebar, or reinforcing bar, is put in place before the concrete is poured. The resulting reinforced concrete is stronger and more durable than...

18. Cloud Gate, SBC Plaza, March 16, 2004 Cloud Gate, SBC Plaza, March 16, 2004 Snow; Marks (Symbols); Close-up view of rebar at SBC Plaza during its construction. Rebar, or reinforcing bar, is put in place before the concrete is poured. The resulting reinforced concrete is stronger and more durable than...

19. Cloud Gate, SBC Plaza, March 16, 2004 Cloud Gate, SBC Plaza, March 16, 2004 Snow; Marks (Symbols); Close-up view of rebar at SBC Plaza during its construction. Rebar is steel bar used for reinforcing concrete. The rebar is put in place and then concrete is poured over it.

20. Cloud Gate, attaching steel plates, May 3, 2004 Cloud Gate, attaching steel plates, May 3, 2004 Steel; Construction workers; Dollies (Moving equipment); Structural frames; Marks (Symbols); A worker attaches an eyelet to a steel plate. Poles were threaded through the eyelets to help hoist the plate into place.
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