Photograph of American Troops During the Battle of Manila (1898)

Photograph of American troops during the Battle of Manila captioned “Advance on Left of American lines. Signal Corps extending telegraph lines from trenches. Flags displayed to indicate to the Navy progress of the advance. August 13, 1898.”

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Carte De Visite Portrait of Confederate Signal Corps Soldier James B. MacLellan Who Served on the Blockade Runner CSS Wren During the Civil War

Carte de visite portrait of Confederate Signal Corps soldier James B. MacLellan who served on the blockade runner CSS Wren during the Civil War. By J. M. Margeson.

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Union Soldiers Posing on and in Front of a Signal Tower at Bermuda Hundred, Virginia (1864)

Union soldiers posing on and in front of a signal tower at Bermuda Hundred, Virginia, 1864. Another man, probably a photographer, is posing with a darkroom wagon on the right. Animated stereoscopic photographs.

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Three Union Soldiers Posing on Top of a Signal Tower on Elk Mountain, Maryland (1862)

Three Union soldiers posing on top of a signal tower on Elk Mountain, Maryland, September 1862. By Timothy O'Sullivan. Animated stereoscopic photographs.

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