TY - ART DB - Science History Institute DP - Science History Institute M2 - Courtesy of Science History Institute. Rights: Creative Commons Attribution 4.0 International License TI - Portrait of George Trapp ID - 70795822r AU - Beneker, Gerrit A. (Gerrit Albertus) DA - 1930/// YR - 1930 M3 - oil paint (paint), canvas (textile material) UR - https://digital.sciencehistory.org/works/70795822r AB - Standing portrait of George Trapp, a blue-collar worker, looking left; dressed in work clothes including a cap, white shirt, vest, and smock; holding the neck of a green glass carboy in left hand; to left, crates used to transport carboys, labeled VITRIOL; factory interior and tools of the trade visible in background. Gilded frame with label: "GEORGE TRAPP / OIL OF VITRIOL DEPT. / EMPLOYED 1881-1932". Oil of vitriol is a historic name for sulfuric acid. Sulfuric acid is used in industrial contexts to manufacture chemicals, fertilizers, and explosives. Artist Gerrit A. Beneker (1882-1934) was an American painter and illustrator, particularly known for his paintings of American industry in the 1920s. Otto Haas commissioned Beneker to paint a series of pictures showing Bridesburg employees. KW - Employees KW - Blue collar workers KW - Pennsylvania--Philadelphia--Bridesburg KW - Rohm and Haas Company KW - Sulfuric acid LA - ER -