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Major Steps in Steelmaking: A Schematic Layout, circa 1940 (inclusive)
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Bryn Mawr College [Contact Us]
Held at: Historical Medical Library of The College of Physicians of Philadelphia [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]
Held at: Library Company of Philadelphia [Contact Us]