Dow Chemical Company (American, 19th/20th Century)

Hercules Incorporated (American, 20th Century)

Hercules Incorporated (American, 20th Century)

Hercules Incorporated (American, 20th Century)

Beckman Instruments (American, 20th Century)

Anonymous

Dow Chemical Company (American, 19th/20th Century)

Hercules Incorporated (American, 20th Century)

Dow Chemical Company (American, 19th/20th Century)

Dow Chemical Company (American, 19th/20th Century)

Hercules Incorporated (American, 20th Century)

Anonymous

Willy Pogany (Hungarian, 1882 – 1955)

Dow Chemical Company (American, 19th/20th Century)

Anonymous