PNP253692 The Winans Steam Gun, captured from the Confederates during the American Civil War, May 1861 (litho) by American School, (19th century); Private Collection; (add.info.: boiler operated weapon allegedly able to project missiles of any size; invented by Chas Dickinson and manufactured by Ross Winans in Baltimore; captured by federal troops in May, 1861 and never fired in battle.); Peter Newark American Pictures; American, out of copyright.