SWG349383 Centennial Commemoration at Philadelphia, 1876 (colour woodcut) by American School, (19th century); 77x113 cm; Private Collection; (add.info.: Poster commemorating the Centennial Exhibition in Philadelphia, celebrating 100 years of American independence (1776-1876); \'Three millions of colonists on a strip by the sea: now forty millions of freemen ruling from ocean to ocean\';); Courtesy of Swann Auction Galleries; American, out of copyright.