Circa 1915. "Home Ice Co." The Home Ice plant at 12th and V streets N.W. in Washington. National Photo Company Collection glass negative. View full size.

"Washington, D.C., auto show. March 3-10, 1917." A display of Chalmers and National cars. National Photo Co. Collection glass negative. View full size.

Philadelphia circa 1928. The Atwater Kent factory, which made radios and auto ignition parts. National Photo Company glass negative. View full size.

Circa 1916. "Section of lumber curing department." The raw materials for making wooden legs at what might be the Pittsburgh workshops of J.E. Hanger Artificial Limb Co. National Photo Company Collection glass negative. View full size.

From now until February we'll be doing hourly updates from the ShorpyCam at Seventh and F. National Photo Company glass negative. View full size.

Washington, D.C., in a circa 1916 time exposure. "Corner of 7th and F northwest." National Photo Company Collection glass negative, 8x10 inches. View full size.

A Sunday morning circa 1964. I would fetch the Sunday paper so my father could read me the funnies. "Peanuts" and "Dennis the Menace" were my favorites. It is probably winter -- my "footy" pajamas would have been necessary in East Texas only in the coldest months. The house was built in 1957. Note the casement window crank and the Danish Modern headboard. I wish I still had my dad's Eames recliner and some of my mother's "mod" furniture. Polaroid scan. View full size.

Washington, D.C. "Blizzard, January 28, 1922." The same lovely ladies we saw perched on a snowbank a few days ago. National Photo Co. View full size.

"Columbia College, New York." The Low Memorial Library in a circa 1897 shot of Columbia University's Morningside Heights campus. Note the steamroller (or whatever that is) to the right. Detroit Publishing glass negative. View full size.

October 1908. Grafton, West Virginia. "Harry and Sallie. Driver in Maryland Coal Co. Mine near Sand Lick. Was afraid to be photo'd because we might make him go to school. Probably 12 years old." Photo by Lewis Wickes Hine. View full size.

August 1862. "Culpeper Court House, Virginia. Federal soldiers and wounded Negro." Wet-plate glass negative by Timothy H. O'Sullivan. View full size.

November 1913. Huntsville, Alabama. "Pete Henson, 414 C Street. Mother said he was 12 two months ago, but has been sweeping in the Merrimack Mill for seven months, so he began at 11 years. Brother Edward said to be 13 years, but doubtful. Mother said they had no Family Record here and gave me ages from memory." Photograph and caption by Lewis Wickes Hine. View full size.

August 25, 1923. Montgomery County, Maryland. "Auto races, Rockville Fair." National Photo Company Collection glass negative. View full size.

Washington circa 1900. "Jack Blaine residence." The imposing 1880s home of James Blaine, Republican from Maine and three-time presidential aspirant. The house, the only surviving example of the "castles" that once ringed Dupont Circle, is undergoing a major renovation. National Photo glass negative. View full size.

October 1908. "Drift Mouth, Sand Lick Mine, near Grafton, West Virginia. Bank boss in center, driver on his right, trapper boy outside. Alfred, about 14 years old. He trapped several years during vacation, said he is going to school this year. Asked if it were because school is more fun, he said: 'This year hain't no fun!'" Photo and caption by Lewis Wickes Hine. View full size.