July 25, 1924. "Some of the young bootblacks working around Trinity Church, New York City." View full size. Photo and caption by Lewis Wickes Hine.

1924. South Manchester, Connecticut. "Cheney Silk Mills. Favorable working conditions." View full size. This picture, one of the last photographs Lewis Wickes Hine made over the span of some 16 years for the National Child Labor Committee, is among the relatively few he took using film.

A cheery WPA Art Project poster from 1940 for the Cleveland Metropolitan Housing Authority. View full size. Old photos to resume in a few short hours.

A Federal Art Project silkscreen poster from 1941, one of a series of public health graphics so attractively designed, they almost seemed like ads for VD. View full size. Get it while it lasts ... Spread the message with this fine-art print.

A silkscreen WPA Art Project poster for the Illinois State Library Project circa 1940. View full size. Available as a Juniper Gallery fine-art print.

It's the third Tuesday in September - so it must be Old Poster Day at Shorpy.com! Old Faithful erupts in this circa 1938 National Park Service silkscreen for Yellowstone National Park. View full size. Available as a fine-art print.

Circa 1938 National Park Service silkscreen poster for Fort Marion National Monument. View full size. Available as a Juniper Gallery fine-art print.

Circa 1938 National Park Service silkscreen poster for Grand Canyon National Park. View full size. Available as a Juniper Gallery fine-art print.

Circa 1938 National Park Service silkscreen poster for Zion National Park. View full size. Available as a Juniper Gallery fine-art print.

Circa 1938 National Park Service silkscreen poster for Lassen Volcanic National Park. View full size. Available as a Juniper Gallery fine-art print.

July 25, 1924. "Tony, a 12-year-old bootblack, at his station in Bowling Green, New York City. He says he makes from $2 to $3 a day regularly." View full size. Photograph and caption by Lewis Wickes Hine (one of his final NCLC photos).

April 1917. "Daily inspection of teeth and fingernails. Older pupils make the inspection under the direction of teacher who records results. This has been done every day this year. School #49, Comanche County, Oklahoma (near Lawton)." View full size. Photograph by Lewis Wickes Hine. Alternate version here.

Oct. 10, 1916. Comanche County, Oklahoma. "School #45, Ash Grove; Miss Hazel McKay, Teacher. One-room school in fair condition. Opened Sept. 4 for 8 month term. Enrollment 22, average attendance 15; last year: enrollment 27, average attendance 15. The balance are picking cotton and also five more that have not enrolled at all. Pickers may be out two weeks more. Teacher expects 30 enrolled after picking is over." View full size. Photo and caption by Lewis Wickes Hine.

March 1909. "Bowling alley boys of New Haven, Connecticut. Many of these work until late at night." View full size. Photo and caption by Lewis Wickes Hine.

Nov. 10, 1916. Vicinity of Bowling Green, Kentucky. "Hazel family (very poorly educated). Children have not been to school this year although living within 1½ miles of school." View full size. Photograph and caption by Lewis Wickes Hine.