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Frederick Graff maps, technical drawings, and plans on Philadelphia (Pa.) water engineering projects, circa 1683-1875
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: Princeton University Library: Manuscripts Division [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Quaker Meeting Records at Haverford College Quaker & Special Collections and Friends Historical Library of Swarthmore College [Contact Us]
Held at: University of Pennsylvania: University Archives and Records Center [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Quaker Meeting Records at Haverford College Quaker & Special Collections and Friends Historical Library of Swarthmore College [Contact Us]
Held at: Princeton University Library: Rare Book Collection [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Princeton University Library: Manuscripts Division [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: Quaker Meeting Records at Haverford College Quaker & Special Collections and Friends Historical Library of Swarthmore College [Contact Us]
Held at: University of Pennsylvania: University Archives and Records Center [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]
Held at: Quaker Meeting Records at Haverford College Quaker & Special Collections and Friends Historical Library of Swarthmore College [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]
Held at: Quaker Meeting Records at Haverford College Quaker & Special Collections and Friends Historical Library of Swarthmore College [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Quaker Meeting Records at Haverford College Quaker & Special Collections and Friends Historical Library of Swarthmore College [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Quaker Meeting Records at Haverford College Quaker & Special Collections and Friends Historical Library of Swarthmore College [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]