"World Series, Griffith Stadium, 1925." The headline when it was all over: PIRATES MAKE NATS WALK PLANK. National Photo Co. View full size.

Circa 1910. "U.S. Senate pages." Harris & Ewing glass negative. View full size.

1911. "The girl works all day in a cannery." Location unspecified but possibly Mississippi. Photograph by Lewis Wickes Hine. View full size.

July 1940. Berrien County, Michigan. "Migrant fruit workers from Arkansas." 35mm nitrate negative by John Vachon for the FSA. View full size.

September 1910. North Pownal, Vermont. "Clarence Wool, 11 years. Spinner in North Pownal Cotton Mill. Worked only during vacation." Photograph (original glass negative) and caption by Lewis Wickes Hine. View full size.

July 1940. "Near Shawboro, North Carolina. Group of Florida migrants on their way to Cranberry [i.e., Cranbury], New Jersey, to pick potatoes." Medium-format safety negative by Jack Delano for the Farm Security Administration. View full size.

Washington, D.C. "Madeira School group." The Class of 1912 had that Gibson Girl thang goin' on. Harris & Ewing Collection glass negative. View full size.

May 11, 1925. "William H. Egberts of National Museum with Siamese musician." National Photo Company Collection glass negative. View full size.

September 11, 1933. "New York City views. Looking north from the Empire State Building." 5x7 safety negative by Gottscho-Schleisner. View full size.

January 25, 1926. "William H. Egberts of National Museum and Kenneth Baker (Cliff House group)." National Photo Company glass negative. View full size.

March 27, 1926. "William H. Egberts examining trepanned skulls in the anthropology laboratory at the National Museum. The crude method of trephining with the sharpened edge of a stone practiced by peoples living in Peru some 500 or 600 years ago is revealed." National Photo Co. View full size.

August 1864. "Petersburg, Virginia. Company A, U.S. Engineer Battalion." Photos from the main Eastern theater of war, the siege of Petersburg, June 1864-April 1865. Wet plate glass negative, photographer unknown. Full size 1 | Full size 2.

Circa 1920. "Herald, Seventh and H streets N.E." Continuing our culinary tour of the nation's capital, we present the New Olive Cafe, next door to H. Bennett, Barber, and Blechman's Fashion Shop. National Photo Company glass negative. View full size.

Washington, D.C., circa 1924. "Cathedral Mansions, bakery," 3000 Connecticut Avenue. National Photo Company Collection glass negative. View full size.

August 1936. "Scenes at the auto trailer camp. Dennis Port, Mass." 35mm nitrate negative by Carl Mydans for the Resettlement Administration. View full size.