San Mateo, California, United States (Google Maps ⧉, OpenStreetMap ⧉)
Referenced In
Valley of Genius
by Adam Fisher"Ali Aydar: It’s just a little four-story building in downtown San Mateo."
The Maltese Falcon
by Dashiell Hammett"It bore the printed name and address of a San Mateo real-estate-dealer and a line penciled in blue: Key at 31."