463185 Specimens for Theo. Leonhardt & Son, Philadelphia, c.1880 (transfer litho) by American School, (19th century); 40 x 52 cm; Library Company of Philadelphia, PA, USA; (add.info.: Advertisement containing examples of vignette views and genre scenes executed by the Philadelphia lithograph firm. Views include "Palo Alto Iron Company\'s Works" in Pottsvile (est. in 1854); a tropical farm; small and industrial towns; and a hill-side village. Leonhardt & Son was a partnership established circa 1874 between Theodore Leonhardt and his son Arno. The firm continued to operate into the early 20th century. Printed by Leonhardt & Son.); 穢 Library Company of Philadelphia ; Library Company of Philadelphia; American, out of copyright.