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The Historical and Interpretive Collections of The Franklin Institute subject files, 1792-1943 (inclusive)
Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]
Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]
Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]
Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]
Held at: University of Pennsylvania: Kislak Center for Special Collections, Rare Books and Manuscripts [Contact Us]
Held at: University of Pennsylvania: University Archives and Records Center [Contact Us]