| 1. |  | Cloud Gate, grinding, May 19, 2005 | Steel; Scaffolding; Construction workers; Grinding; Ladders; Marks (Symbols); | A worker grinds the sculpture using a platen sander (a.k.a an air-driven ten pound belt sander). In addition to grinding and polishing the seams where the plates were welded, a two to three feet wide area... |
