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Graceanna Lewis natural history papers, 1869-1890 (bulk) 1869-2006 (inclusive)

Held at: Delaware County Institute of Science [Contact Us]

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T. Chalkley Palmer natural science teaching collection, circa 1880-1930

Held at: Delaware County Institute of Science [Contact Us]

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Harold W. Arndt papers of the Delaware County Institute of Science, Geological and Mineralogical Section, 1938-1942 (inclusive)

Held at: Delaware County Institute of Science [Contact Us]

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The Historical and Interpretive Collections of The Franklin Institute manuscript collection, 1762-2003 (inclusive)

Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]

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Journal of The Franklin Institute lantern slides, 1881-1921 (inclusive)

Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]

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The Historical and Interpretive Collections of The Franklin Institute general lantern slide collection, late 19th century-mid-20th century

Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]

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The Historical and Interpretive Collections of The Franklin Institute photograph and negatives collection, circa 1860-1990s

Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]

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The Historical and Interpretive Collections of The Franklin Institute collection of oversized papers, 1790-1984 (inclusive)

Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]

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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]

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Franklin Institute records, 1824-2016 (inclusive)

Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]