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William H. Tower Philatelic Collection, 1380-1950 (inclusive) 1700s-1940s (bulk)
Held at: Princeton University Library: Manuscripts Division [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Free Library of Philadelphia: Rare Book Department [Contact Us]
Held at: Free Library of Philadelphia: Rare Book Department [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: University of Pennsylvania: Biddle Law Library [Contact Us]
Held at: American Baptist Historical Society [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]