Double-acting pneumatic air pump, 1750-1760
Photo by Peter Harholdt, 2004
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Photo by Peter Harholdt, 2004

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Exhibitions
"Benjamin Franklin: In Search of a Better World," Benjamin Franklin Tercentenary traveling exhibition, 2005-2008
Related Publications

Talbott, Page, ed., Benjamin Franklin: In Search of a Better World (New Haven and London: Yale University, 2005) (companion book to exhibition of same title) Fig. 5.16

Provenance
Owned by Benjamin Franklin, this was willed to Francis Hopkinson with other pieces of scientific equipment. This went from Hopkinson to his son, Joseph, in 1791; from Joseph to his son, Richard W., in 1842; from Richard to the City of Philadelphia in 1876. Placed by the City of Philadelphia in the custodial care of Independence National Historical Park (National Park Service), July 14, 1950.
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