"Greene statue circa 1918." Henry Kirke Brown's bronze of the Revolutionary War hero Nathanael Greene, in a Washington, D.C., park or square whose name we can't quite remember. National Photo Company glass negative. View full size.

November 1909. The 25th annual National Horse Show at Madison Square Garden in New York, in one of those ultra-detailed yet otherworldly views so characteristic of large-format glass negatives (8x10 inches here). View full size.

"Express Strike, New York City." In 1910, wagon drivers for Adams Express, American Express, Wells Fargo and other delivery companies went on strike, leading to riots and rock-throwing when the strike-breakers were called in. 5x7 glass negative, George Grantham Bain Collection. View full size.

Washington, 1920. "Smith Storage Co., 13th & U Streets N.W." With the motor truck gaining fast on the horse team. National Photo Company. View full size.

April 18, 1925. "Miss Louise Ireland & Miss Helen Marye." Last seen in the previous post on a tricycle with a big bow in her hair, 10 years later Helen has graduated to polo ponies and a bobbed 'do. National Photo Co. View full size.

Atlanta, 1864. "Federal Army wagons at railroad depot." And maybe Scarlett O'Hara in the distance. Wet plate negative by George N. Barnard. View full size.

October 1863. "Culpeper, Virginia. Gen. George G. Meade's horse, Baldy." Wet plate glass negative, photographer unknown. View full size.

September 1908. Grafton, West Virginia. "Tipple Boy and Drivers. Maryland Coal Co. mine near Sand Lick. Boy with mule was afraid at first to be in the picture; another boy said he feared we might make him go to school." View full size. Photograph and caption by Lewis Wickes Hine.

1864. "Bermuda Hundred, Virginia. Photographer [possibly Mathew Brady, next to the horse] at Butler's signal tower, Cobb's Hill, Appomattox River." Note the cloth-draped darkroom and developing chemicals in bottles on the grass. Wet plate glass negative, half of stereo pair. View full size.

May 1864. "Fredericksburg, Va. Soldiers filling canteens." Photographs from the main Eastern theater of war, Grant's Wilderness Campaign, May-June 1864. Wet plate glass negative, half of stereo pair, photographer unknown. View full size.

May 1865. "Another artillery unit passing on Pennsylvania Avenue near the Treasury." Wet plate glass negative by Mathew Brady. View full size.

1911. "Lt. Alexander W. Chilton, 15th Cavalry." In or around Washington. National Photo Company glass negative. Library of Congress. View full size.

May 1, 1908. "Speedway parade. Louis Frank with trotter 'Strange Leaf,' a prize winner." View full size. 5x7 glass negative, George Grantham Bain Collection.

Feb. 27, 1908. "A scrimmage." Polo team at Durland's Riding Academy in New York. View full size. 8x10 glass negative, George Grantham Bain Collection.

July 30, 1924. "Hazel Watson, Eleanor Howell and Marjie Peacock at Arlington Beach." View full size. National Photo Company Collection glass negative.