1123079 Krupp\'s Guns, German exhibit, Centennial International Exhibition, Philadelphia, 1876 (silver albumen print) by American Photographer, (19th century); 12x20 cm; Free Library of Philadelphia; (add.info.: The Centennial International Exhibition of 1876, the first official World\'s Fair in the United States, was held in Philadelphia, Pennsylvania, from May 10 to November 10, 1876, to celebrate the 100th anniversary of the signing of the Declaration of Independence in Philadelphia. Officially named the International Exhibition of Arts, Manufactures and Products of the Soil and Mine, it was held in Fairmount Park along the Schuylkill River on fairgrounds designed by Herman J. Schwarzmann. "Krupp\'s Guns, German exhibit. Krupp\'s guns were among the marvels of Germany\'s displays. They were not, however, any more sinister than the heavy cannon mounted outside the United States Government Building, which seemed to invite a comparison of military strength."--Looney. Old Philadelphia. p. 209.); 穢 Free Library of Philadelphia ; American, out of copyright.