"Luna Park at night." Third in a series of Detroit Publishing glass negatives showing the Coney Island attraction at night circa 1905. View full size.

September 1910. "Boys working for Hickok Lumber Company. Burlington, Vermont." Photograph by Lewis Wickes Hine. View full size.

Washington, 1939. "Anacostia High School. Art class." A veritable rainbow of grays. National Photo Company Collection safety film negative. View full size.

November 1912. "Government Printing Office, Washington." This looks like it might be a nice place to work. Harris & Ewing glass negative. View full size.

Washington circa 1917. This is, as far as we know, our final glimpse of the Haynes roadster before it motors on its way down 14th Street into eternity. If the darn umbrella ever changes. Harris & Ewing glass negative. View full size.

New York City circa 1908. "Luncheon -- Cripple School, Henry Street." Dining room at the East Side Free School for Crippled Children, which we saw earlier today. 8x10 glass negative, George Grantham Bain Collection. View full size.

August 1956. "Attendees at the Republican National Convention, San Francisco, California." They liked Ike, and Richard Nixon too. Photograph by Thomas J. O'Halloran, U.S. News & World Report. View full size.

Washington, 1911. "Post Office Department mail box." In front of the Old Post Office building. Harris & Ewing Collection glass negative. View full size.

Washington, 1925. "Ford Motor Company. Capitol bedding truck." In a rare stab at whimsy or wit or whatever you want to call it, National Photo shot this Capitol Mattress truck in front of the actual Capitol. Tee hee! View full size.

"Mentally Retarded children in E.S.F.S. for Crippled Children." New York circa 1908. "Feeble-minded in cripple school" is the non-PC caption written on this classroom scene showing the East Side Free School for Crippled Children, 155-157 Henry Street. George Grantham Bain Collection glass negative. View full size.

May 1909. Somersworth, New Hampshire. "Lefthand boy Zeke Gosselin, 95 Main Street. Been in mill one year. Other boy Philip Lesard, 68 Elm Street. Been in mill three years. Working in Great Falls Manufacturing Co." View full size.

Circa 1928. "Washington Sanitarium, dietetic kitchen. Takoma Park, Maryland." Bon appetit! National Photo Company Collection glass negative. View full size.

District of Columbia, 1914. "Alley clearance. Slum views." A scene that I don't imagine would have changed much since the 19th century except for the utility pole. Harris & Ewing Collection glass negative. View full size.

"Post Office Dept. Hupp Auto Railway Service." The download part of the Hupp mail-transfer system. Harris & Ewing Collection glass negative. View full size.

"1912. Post Office. Hupp Automatic Railway Service." Another look at the Hupp system for mail transfer to and from a moving train, this being the upload part. Harris & Ewing Collection glass negative. View full size.