December 1941. "Seamstress in Puerto Rico." 35mm nitrate negative by Jack Delano for the Farm Security Administration. View full size.

December 1941. San Juan, Puerto Rico. "Apartment houses near the cathedral in old part of the city." Medium format Kodachrome transparency by Jack Delano for the Farm Security Administration. View full size.

1921. "John Loehler, George Washington University." View full size. National Photo Company Collection glass negative. John (1902-1992) was an architect.

On the left: "Full Current: Young woman using an electric device for massage and stimulation of her face and neck." On the right: "Chest Developer: Woman at dressing table holding electric vibrating machine against her chest." Royal Specialty Company, Cleveland, 1909. Library of Congress copyright deposit, series of five 8x10 photographs: "Chest Developer," "Full Current," "Feels Good," "I Always Use It," "Smoothing the Wrinkles." View full size.

December 1941. "Cultivating tobacco at the Puerto Rico Reconstruction Administration experimental area, vicinity of Cayey." Medium format Kodachrome transparency by Jack Delano, Office of War Information. View full size.

Washington, D.C., vicinity circa 1915. "Along the Chesapeake & Ohio Canal." National Photo Company Collection glass negative. View full size.

December 1942. "General view of a classification yard at the Chicago & North Western RR's Proviso Yard." View full size. 4x5 Kodachrome transparency by Jack Delano for the Office of War Information.

St Louis, Mo. Truants selling papers at Jefferson & Washington. 11 a.m. Monday May 9, 1910. Smallest boy is Marvin Adams, 2637 Washington Avenue. Said he got his papers "off'n de other feller." Other boy is Owen McCormack, 2651 Washington Avenue. View full size. Photo and caption by Lewis Wickes Hine.

December 1941. "Lower Manhattan seen from the S.S. Coamo leaving New York." View full size. 35mm negative by Jack Delano. Office of War Information.

July 1940. "Penasco, New Mexico. Spanish-American clowns at a traveling show." View full size. Medium format safety negative by Russell Lee for the FSA.

July 1940. "Acrobat and audience at Spanish-American traveling show. Penasco, New Mexico." View full size. Medium format safety negative by Russell Lee.

May 5, 1910. St. Louis, Missouri. "Truants like these may be found most any day between 11 a.m. & noon. Jefferson Street near Washington." View full size. Photograph and caption by Lewis Wickes Hine.

November 1939. "Negro boys sitting on bench on street, Waco, Texas." 35mm negative by Russell Lee for the Farm Security Administration. View full size.

Taking the air in Washington, D.C., in 1920. "McDevitt, wife and baby." National Photo Company Collection glass negative. View full size.

Chicago, April 1943. "General view of part of the South Water Street Illinois Central Railroad freight terminal." View full size. 4x5 Kodachrome transparency by Jack Delano for the Office of War Information.