463200 Exhibit at the Centennial Exposition 1876, 1876 (chromolitho) by Blanc, Albert (19th century); 34 x 43 cm; Library Company of Philadelphia, PA, USA; (add.info.: View showing the "Chemicals, Powers & Weightman, Philadelphia" exhibit booth at the Centennial Exhibition that celebrated the centennial of the United States through an international exhibition of industry, agriculture, and art. In 1847, Powers & Weightman succeeded Farr & Kunzi (established in 1818), and became internationally renowned for their manufacture of medicinal and other fine chemicals. The company was the first to introduce quinine to the United states.); 穢 Library Company of Philadelphia ; American, out of copyright.