Click on either map to open a new window to google where you can get door to door directions.     Duffy's Restaurant & Catering 1004 West Eighth Ave. King of Prussia, PA 19406 610-337-4450 Duffy's Radnor Cafe 100 Matsonford Road Radnor Corporate Center - Building 4 Radnor, Pa 19087 610-254-9080