Long Bridge Cavalry

Inscribed: Stockade and gates closing the approach to the long bridge [thro'] two enfiladed lines. (a dusty place). Inscribed on verso: Long bridg [sic?] Stockade & gate closing the approach to the long bridge across the Potomac, at Washington 61.
Published in New York Illustrated News, July 13, 1861, p. 149, as: Stockade and Gate Closing the Approach to the Long Bridge across the Potomac, at Washington. Drawn by Alfred R. Waud.
Library of Congress document.

http://memory.loc.gov/master/pnp/cph/3a00000/3a07000/3a07900/3a07920u.tif