BUY PRINT    Bermuda Hundred, Virginia. Signal tower on left of the line near the Appomattox River. Photograph from the main eastern theater of war, the Army of the James, June 1864-April 1865. Wet collodion glass plate. View full size | Even larger. Signal towers, employed by both the Confederate and Union armies during the Civil War to transmit coded messages, used flags by day and torches by night. | Click image for Comments. | Home | Browse All Photos