File:Rod shop, roof and truss detail showing older pink roof truss, newer pratt truss, and longitudinal, truss for overhead traveling crane - Chicago, Burlington and Quincy Railroad, HAER ILL,45-AUR,1-66.tif
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![File:Rod shop, roof and truss detail showing older pink roof truss, newer pratt truss, and longitudinal, truss for overhead traveling crane - Chicago, Burlington and Quincy Railroad, HAER ILL,45-AUR,1-66.tif](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Rod_shop%2C_roof_and_truss_detail_showing_older_pink_roof_truss%2C_newer_pratt_truss%2C_and_longitudinal%2C_truss_for_overhead_traveling_crane_-_Chicago%2C_Burlington_and_Quincy_Railroad%2C_HAER_ILL%2C45-AUR%2C1-66.tif/lossy-page1-757px-thumbnail.tif.jpg?20140716235711)
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Original file (4,928 × 3,905 pixels, file size: 18.35 MB, MIME type: image/tiff)