Washington, D.C., circa 1917. "Post Office postmen on scooters." Kind of a Segway vibe here. Harris & Ewing Collection glass negative. View full size.

March 1915. "San Francisco by wagon from Staten Island, New York." Three guys and a dog and their two-horsepower hybrid in Washington, taking the Overland Trail west. Harris & Ewing Collection glass negative. View full size.

Circa 1920. "People's Drug Store, 15th & G Streets N.W., Washington." Also at 703 15th: Many other tenants. National Photo Co. glass negative. View full size.

1956. "Segregation in South Carolina. Separate and unequal recreation facilities." I've looked at hundreds of photos from this assignment and would have to agree -- the white folks in general seem to be having a lot less fun in their hopelessly boring bars, uptight country clubs and over-chlorinated swimming pools. Eventually they got wise. Color transparency by Margaret Bourke-White. View full size.

Washington circa 1921. "Loomis Radio School." Another look at the technical school run by Mary Texanna Loomis. National Photo Company. View full size.

June 6, 1950. Pembroke, Ontario. "Vis-O-Matic department store." A variation on mail-order shopping, the Vis-O-Matic system used color slides to display merchandise to potential customers, with orders placed by Teletype and delivered to your door. Photo by Bernard Hoffman, Life image archive. View full size.

Winnetka, Illinois. June 1950. "Student Rue Lawrence wearing frilly summer dress and bright lipstick in classroom at New Trier High School." Rue was on the cover of the October 16, 1950, issue of Life. Color transparency by Alfred Eisenstaedt, Life magazine photo archive. View full size.