In this snapshot, we see 3 levels of the GALLERY II mall. In 1983, the anchor store in view would have been J.C. Penney. This store closed in 2001, with Burlington Coat Factory opening its doors in August 2003.
Photo from www.labelscar.com / "Prange Way"

A circa-2009 site plan of Philly's downtown mall. Its Strawbridge's store had closed its doors in late 2006. Big Kmart would operate in the old Gimbels space for over 16 years.