Abstract: A locator sign system for identifying a house, office or other location, mounted in a window, inside the location. The system comprising a light box display housing with a front panel; a sign panel; a sash clip; a hanging cord; and a lighting assembly panel. The light box uses 125 volt AC house current to power low voltage miniature lights, which are mounted by clips on the panel. The lights projecting light beams from the top of the housing, and projecting light through any one of translucent pre-printed sign panels of varying messages for identifying the location at increased distances therefrom. Typically, the illuminated sign system can be operated in ON, OFF or BLINK modes by a three position switch and blinker bulb which can be automated by addition of a 125 volt AC house timer. The system operates for the purpose of attracting attention to the location for deliveries, emergencies, house number, messages, greetings, advertisements, decoration and the like.