02:12, 9 July 2006Slambotalkcontribs uploaded File:Moffat tunnel construction.jpg (Moffat Tunnel under construction. Photo retrieved from: "History of the American West, 1860-1920: Photographs from the Collection of the Denver Public Library" retrieved from the American Memory Collection, Library of Congress. [http://memory.loc.gov)
15:09, 7 June 2006Slambotalkcontribs uploaded File:Skybus Metro concept drawing.jpg (Concept drawing of Skybus Metro. Image cropped from Image:Skybus Metro.pdf which was released into the public domain by its author.)
14:11, 8 October 2005Slambotalkcontribs uploaded File:ER Diagnostic System.jpg (Combination FRA Event Recorder and Diagnostic System used on the Metro-North Railroad EMU locomotives. (edit: cropped out unnecessary whitespace))
01:50, 13 July 2005Slambotalkcontribs uploaded File:Hell Gate Bridge ca 1917.jpg (The Hell Gate Bridge as seen circa 1917. First published by the Detroit Publishing Company between 1915 and 1920; Library of Congress call number LC-D428-931. Library of Congress, Prints and Photographs Division, Detroit Publishing Company Colle)