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Hans A. Widenmann Papers, 1915-1977 (inclusive) 1950-1977 (bulk)
Held at: Princeton University Library: Public Policy Papers [Contact Us]
Held at: Princeton University Library: Public Policy Papers [Contact Us]
Held at: Philadelphia Museum of Art Archives [Contact Us]
Held at: University of Pennsylvania: Kislak Center for Special Collections, Rare Books and Manuscripts [Contact Us]
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: Science History Institute Archives [Contact Us]
Held at: University of Pennsylvania: Kislak Center for Special Collections, Rare Books and Manuscripts [Contact Us]