Come to the Historical Society of Pennsylvania on Wednesday, October 16, to see the library’s redesigned lobby, library, and collection vaults. During the grand reopening celebration, the public can view Treasures of the Collection, a special document display featuring watercolor portraits of Hannah and William Penn, a handwritten draft of the U.S. Constitution, the journal of Underground Railroad conductor William Still, and more! Because of their national significance and sensitivity to light and temperature, these documents are rarely displayed. This display—free to attend—is a once-in-a-lifetime opportunity to see all of these national treasures at one time.Also on October 16, HSP will offer free behind-the-scenes tours of its library (on the hour). See firsthand how a document is mended and restored; learn how archivists organize and catalog historic materials, and walk in the footsteps of our librarians as you enter a collection storage vault. Visitors to HSP will also enjoy free refreshments, special membership promotions, and half-price admission to our research library.HSP began renovating its library, which was designed by architect Addison Hutton and dates to the early 20th century, last March. As part of the renovations, the Society constructed a 10-foot-high digital wall that displays images from the collection, modernized our lobby to make it more welcoming, improved HSP’s security system to ensure the safety of the library’s archive, and installed compact storage shelving to make more room for our growing collection.