Exterior view of a section of the muriatic manufacturing facility at the Charles Lennig and Company chemical manufacturing plant in Bridesburg, a neighborhood located along the Delaware River in the Northeast section of…

Exterior view of a section of the nitric acid manufacturing facility (Building 15) at the Charles Lennig and Company chemical manufacturing plant in Bridesburg, a neighborhood located along the Delaware River in the…

Exterior view of the southeast corner of the Leukanol and Sorbanol manufacturing facility (Building 2) at the Charles Lennig and Company chemical manufacturing plant in Bridesburg, a neighborhood located along the…

Exterior view of a section of the Leukanol and Sorbanol manufacturing facility (Building 2) at the Charles Lennig and Company chemical manufacturing plant in Bridesburg, a neighborhood located along the Delaware River…

Exterior view of a section of the sodium nitrate storage and nitric acid plant at the Charles Lennig and Company chemical manufacturing plant in Bridesburg, a neighborhood located along the Delaware River in the…

Exterior view of the Cooper Shop at the Charles Lennig and Company chemical manufacturing plant in Bridesburg, a neighborhood located along the Delaware River in the Northeast section of Philadelphia, Pennsylvania.…

Aerial view of the Whitmoyer Laboratories, Inc., facility located in Myerstown, Pennsylvania. Rohm and Haas, an international chemical company headquartered in Philadelphia, Pennsylvania, acquired Whitmoyer Laboratories…

Aerial view of the Warren-Teed Pharmaceuticals, Inc. research center facility located in Dublin, Ohio. Rohm and Haas, an international chemical company headquartered in Philadelphia, Pennsylvania, acquired Warren-Teed…

Exterior view of the Warren-Teed Pharmaceuticals, Inc. facility located in Columbus, Ohio. Rohm and Haas, an international chemical company headquartered in Philadelphia, Pennsylvania, acquired Warren-Teed in 1964 as…

Aerial view of the Rohm and Haas Company research laboratories facility located in Spring House, Pennsylvania.

Aerial view of the Rohm and Haas Company chemical manufacturing plant in Bridesburg, a neighborhood located along the Delaware River in the Northeast section of Philadelphia, Pennsylvania.

Aerial view of the Sauquoit Fibers Company, alternately known as the Sauquoit Silk Company, facility located in Scanton, Pennsylvania. Rohm and Haas, an international chemical company headquartered in Philadelphia,…

Aerial view of the Rohm and Haas Company manufacturing facility located in Louisville, Kentucky.

Aerial view of the Rohm and Haas Company manufacturing facility located in Knoxville, Tennessee.

Aerial view of the Rohm and Haas Company manufacturing facility located in Deer Park, Texas near Houston. This facility, the first Rohm and Haas plant built outside of the Delaware Valley (Pennsylvania) region, focused…

Exterior view of the Rohm and Haas Company home office located on Independence Mall in Philadelphia, Pennsylvania.

Aerial view of a Rohm and Haas Company nylon manufacturing plant located in Fayetteville, North Carolina. Rohm and Haas, an international chemical company headquartered in Philadelphia, Pennsylvania, opened the plant in…

Aerial view of the Rohm and Haas Company facilities in Bristol, Pennsylvania. The Bristol plant opened around 1917 to manufacture Oropon, a synthetic leather bating product, following dissatisfaction with the company's…

Aerial view of the Affiliated Laboratories facility, a division of Whitmoyer Laboratories, Inc., located in White Hall, Illinois. Rohm and Haas, an international chemical company headquartered in Philadelphia,…

Photographic album containing 13 black and white photographs of assorted Rohm and Haas Company plants, laboratories, and subsidiaries. The album primarily encompasses facilities that Rohm and Haas purchased in the early…

Map depicting the facility and grounds of the Charles Lennig and Company chemical manufacturing plant in Bridesburg, a neighborhood located along the Delaware River in the Northeast section of Philadelphia,…