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Edward G. Mazurs Collection of Periodic Systems Images, 1860s-1950s (inclusive) 1880s-1920s (bulk)
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Philadelphia Archdiocesan Historical Research Center [Contact Us]
Held at: University of Pennsylvania: Archives at the Library of the Katz Center for Advanced Judaic Studies [Contact Us]
Held at: Free Library of Philadelphia: Rare Book Department [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: University of Pennsylvania: Kislak Center for Special Collections, Rare Books and Manuscripts [Contact Us]
Held at: University of Pennsylvania: Kislak Center for Special Collections, Rare Books and Manuscripts [Contact Us]