Reliance Line, Atkins & Co., 1852 Illustrated Railroad Cornercard, Carried via Niagara from Boston to London

Philadelphia Pa. blue datestamp and matching "24" rate (Clarke 582) on cover to London, dated December 20, 1852. Illustrated cornercard for Reliance Line, Atkins & Co., depicting steam locomotive and railcars. Carried by Cunard Line’s Niagara departing Boston, with January 4, 1853 London arrival backstamp. Light wear, still a fine and and attractive transatlantic use of early railroad advertising.