File:Fireproofing chicago arch tour.png
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![File:Fireproofing chicago arch tour.png](https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Fireproofing_chicago_arch_tour.png/398px-Fireproofing_chicago_arch_tour.png?20161003233835)
Size of this preview: 398 × 599 pixels. Other resolutions: 159 × 240 pixels | 319 × 480 pixels | 510 × 768 pixels | 680 × 1,024 pixels | 1,360 × 2,048 pixels | 4,112 × 6,192 pixels.
Original file (4,112 × 6,192 pixels, file size: 9.05 MB, MIME type: image/png)