Click here to read HSP’s reaction to the record-breaking sale of a printing of the Constitution! Historical Society of Pennsylvania Chat Live Chat available Mon & Fri 11 a.m. - 2 p.m. Or submit a question anytime! Collections ▾ Resources ▾ Visit ▾ About Us ▾ Support ▾ Login Search Philadelphia's Library of American History Learn More     Stories from the Stacks Address 1300 Locust Street Philadelphia, PA 19107 (map) T: (215) 732-6200 F: (215) 732-2680 Library Hours** **HSP hours remain modified & is currently open to researchers by appointment only** Click HERE to schedule an appointment Tuesday: 10:00 a.m. - 4:00 p.m. Wednesday: 10:00 a.m. - 4:00 p.m. Thursday: 10:00 a.m. - 4:00 p.m. Administrative hours are 9:00 a.m. - 5:00 p.m., Mon-Fri Fine Print For the Media Privacy Policy Permissions & Licensing Report Website Problem