General view of the Hercules Powder Company display at the 1956 National Crushed Stone Association trade show held at the Conrad Hilton Hotel in Chicago.

Formed in 1912 as part of an anti-trust settlement with DuPont,…

General view of the Hercules Powder Company display at the 1956 Society of Exploration Geophysicists annual meeting held in New Orleans.

Formed in 1912 as part of an anti-trust settlement with DuPont, the Hercules…

Series of photographs depicting different panels of the Hercules Powder Company display at the 1956 National Crushed Stone Association trade show held at the Conrad Hilton Hotel in Chicago.

Formed in 1912 as part of an…

General view of the Hercules Powder Company display at the 1957 Cleveland Coal Show held at the Cleveland Public Auditorium.

Formed in 1912 as part of an anti-trust settlement with DuPont, the Hercules Powder Company…

General view of the Hercules Powder Company display at the 1957 Metal Mining Show held in Los Angeles.

Formed in 1912 as part of an anti-trust settlement with DuPont, the Hercules Powder Company (later Hercules Inc.)…

General view of a group of unidentified men standing in front of the Hercules Powder Company display at the 1957 meeting of the Society of Exploration Geophysicists.

Formed in 1912 as part of an anti-trust settlement…

General view of the Hercules Powder Company display at the 1958 National Crushed Stone Association trade show held at the Conrad Hilton Hotel in Chicago.

Formed in 1912 as part of an anti-trust settlement with DuPont,…

Elevated view of the exterior of the Hercules Powder Company plant facilities in Brunswick, Georgia. One of two Hercules plants specializing in naval stores, the Brunswick plant extracted rosin, turpentine, and pine oil…

General view of several employees using a crane to move a heat treatment tank in preparation for the expansion of rosin-making facilities at the Hercules Powder Company plant in Brunswick, Georgia. One of two Hercules…

General view of safety inspector John Cloer at work in the foam house at the Hercules Powder Company plant in Brunswick, Georgia, with view of assorted fire-fighting and fire-suppression apparatus. One of two Hercules…

General view of office machine operator Pat Bodie examining a sample of rosin at the Hercules Powder Company plant in Brunswick, Georgia. One of two Hercules plants specializing in naval stores, the Brunswick plant…

General view of technician Mary Moffit using an infrared spectrophotometer to analyze a sample of the insect repellent Metadelphene in a laboratory at the Hercules Powder Company plant in Brunswick, Georgia. Per…

General view of boilermaker Hubbie H. Hattaway operating an acetylene cutting torch in the machine shop at the Hercules Powder Company plant located in Brunswick, Georgia. Per notations accompanying the photograph, the…

General view of research assistant Evelyn Kieffer using a reactor flask to analyze an unidentified substance in a laboratory at the Hercules Powder Company plant in Brunswick, Georgia. One of two Hercules plants…

General view of the tank car loading station used to transport hot rosin at the Hercules Powder Company plant in Brunswick, Georgia. One of two Hercules plants specializing in naval stores, the Brunswick plant extracted…

General view of the exterior of the manufacturing facilities for Toxaphene, an insecticide concentrate, at the Hercules Powder Company plant in Brunswick, Georgia. One of two Hercules plants specializing in naval…

Exterior view of a rosin manufacturing facility at the Hercules Powder Company plant in Brunswick, Georgia with view of digesters on right-hand side. One of two Hercules plants specializing in naval stores, the…

General view of Stan Fenelon (left), Pexite rosin and refinery supervisor, and Clarence Darley (right), day relief operator, examining the rosin solution evaporator apparatus at the Hercules Powder Company plant in…

General view of employee Edward Newmans clearing spent wood chips from an extractor tank at the Hercules Powder Company plant in Brunswick, Georgia. One of two Hercules plants specializing in naval stores, the Brunswick…

General view of employee Mildred Wells using a Hart moisture meter to measure the moisture in a sample of carboxymethyl cellulose (CMC) at the Hercules Powder Company plant in Hopewell, Virginia. Also known as cellulose…

General view of employee Mildred Wells using a Brookfield Viscometer to measure the viscosity of a carboxymethyl cellulose (CMC) solution at the Hercules Powder Company plant in Hopewell, Virginia. Also known as…

Two views of employee Mildred Wells testing samples of carboxymethyl cellulose (CMC) for residual fibers at the Hercules Powder Company plant in Hopewell, Virginia. As visible in the photograph, the samples were placed…

General view of the production of carboxymethyl cellulose (CMC) at the Hercules Powder Company plant in Hopewell, Virginia. Also known as cellulose gum or tylose powder, CMC is a cellulose derivative commonly used as a…

General view of an unidentified employee loading packages of so-called "chemical cotton" into a boxcar at the Hercules Powder Company plant in Hopewell, Virginia. Chemical cotton, a type of purified cellulose obtained…

General view of a control panel used to manage the continuous bleaching operation, part of the production of so-called "chemical cotton," at the Hercules Powder Company plant in Hopewell, Virginia. Chemical cotton, a…