1619621 The Civil War in America, the Long Bridge over the Potomac at Washington, guarded by United States\' Artillery (engraving) by English School, (19th century); Private Collection; (add.info.: The Civil War in America, the Long Bridge over the Potomac at Washington, guarded by United States\' Artillery. Illustration for The Illustrated London News, 20 July 1861. English School (19th Century)); Look and Learn / Illustrated Papers Collection.