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    • 1995-Jan-27

    Dexter Baker begins the interview by discussing his childhood and early education in the suburbs of Philadelphia. After graduating from Upper Darby High in 1945, Baker was drafted into the US Navy and admitted to the…

    • 1935 – 1945

    General view of a German aircraft with a Plexiglas windshield and nose panels. Per notations accompanying the photograph, the plane is identified as a Heinkel-Flugzeug HE 111, a type of bomber designed to masquerade as…

    • 1958-Jun-20

    Close-up view of a Plexiglas auger (a type of drilling device or drill bit) manufactured at an unidentified Rohm and Haas Company facility.

    The Rohm and Haas Company was founded in 1907 in Esslingen, Germany through…

    • 1958-Jun-20

    General view of the production of a Plexiglas auger (a type of drilling device or drill bit) at an unidentified Rohm and Haas Company facility. The employee visible in the photograph is also unidentified.

    The Rohm and…

    • 1963-Apr-15

    General view of Philadelphia Mayor James Tate (center) and two unidentified Rohm and Haas Company executives at the groundbreaking ceremony for the Rohm and Haas Company headquarters located on Independence Mall.…

    • 1959-Apr-22

    General view of an exhibition display board detailing the use of Plexiglas windows on jet-powered airliners. The board features several photographs of airliners, as well as samples of Douglas DC-8 and Lockheed Electra…

    • 1956-Apr-19

    General view of a display board featuring assorted samples of automotive and appliance parts made with Plexiglas molding powder, including taillight lens, dome lights, and hood medallions.

    The Rohm and Haas Company…

    • 1948-Feb

    General view of several rows of Plexiglas panels positioned on racks. Per notations accompanying the photograph, the panels are set up for an outdoor exposure test designed to demonstrate the weathering capabilities of…

    • 1953-Feb

    General view of a Union Pacific Railroad car featuring Plexiglas panels concealed under metal screens. Per notations accompanying the photograph, this box car was used to test and measure the movement of the panels and…

    • circa 1952

    General view of an unidentified employee measuring the specific gravity of a specimen in the Dow Chemical Company's Agricultural Chemical Research and Development Laboratory. Per an article in the August 1941 edition of…

    • circa 1952

    General view of an unidentified employee at work in the Dow Chemical Company's Agricultural Chemical Research and Development Laboratory, with view of assorted laboratory equipment and apparatus. Per an article in the…

    • circa 1952

    General view of chemist Mark Wolf preparing a sample for analysis at the Dow Chemical Company's Agricultural Chemical Research and Development Laboratory facilities. Per an article in the August 1941 edition of the Dow…

    • 1954

    General view of chemist Bernie Thiegs working with various specimens at the Dow Chemical Company's Agricultural Chemical Research and Development Laboratory facilities. Per an article in the August 1941 edition of the

    • 1953-Mar

    General view of entomologist E.E. ("Gene") Kenaga at work in the storage room for grain insect cultures at the Dow Chemical Company's Agricultural Chemical Research and Development Laboratory. Per notations accompanying…

    • 1941-Aug

    General view of chemist Bernie Thiegs preparing an insecticide intended to combat potato beetles at the Dow Chemical Company's Agricultural Chemical Research and Development Laboratory facilities. Per an article in the…

    • 1941-Aug

    General view of two employees at work in a Dow Chemical Company Agricultural Chemical Research and Development Laboratory facility. Per an article in the August 1941 edition of the Dow Diamond, the department was…

    • 1941-Aug

    General view of the central corridor of a greenhouse associated with the Dow Chemical Company's Agricultural Chemical Research and Development Laboratory. Per an article in the August 1941 edition of the Dow Diamond,

    • circa 1960-Jul

    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…

    • circa 1960-Jul

    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…

    • circa 1960-Jul

    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…

    • circa 1960-Jul

    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…

    • circa 1960-Jul

    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…

    • circa 1960-Jul

    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…

    • circa 1960-Jul

    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…

    • circa 1960-Jul

    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…