Joseph Priestley House. Home, 1794-1804, of the noted English scientist. Administered by the Pennsylvania Historical and Museum Commission.

See also...
Spudgun67 on Wikimedia Commons
Peter Hughes on Flickr
Elliott Brown on Flickr
Open Plaques on Flickr
Cy Evans on Wikimedia Commons
Peter Hughes on Flickr
Spudgun67 on Wikimedia Commons
David Grimshaw on Geograph
Seo Mise on Geograph
warrington.civsoc on Flickr PD 1.0