Click on the broken link graphic and fill in the form
Philadelphia Historical Land Records and Vitals Site
Deed Indexes Grantor & Grantee for Philadelphia from 1683-1977 available for free. Deed Books available online for a fee. Read info pdfs for caveats. There are also links to Parcel Explorer where, for a fee, you can track the chain of ownership on property from 1865 to 1975.