Illuminated number display device

A device for displaying a visually observable number or the like during daylight and displaying the same but illuminated number or the like during nightime, said device comprising a housing having an interior chamber defined in part by a front wall, said front wall having at least one opening therethrough in light communication with said interior chamber, light producing means supported within said chamber and adapted to be electrically energized to emit light through said opening, and a plurality of discrete, individual indicia display plates mounted on said front wall, each of said indicia display plates having means thereon for attaching the same to said housing and in position in front of said opening and for juxtaposition next to adjacent indicia display plates to provide the visually observable number, each of said indicia display plates having an identifying indicia thereon visible in daylight and each having a plurality of light transmitting channels therethrough overlying said opening and disposed in a pattern providing an illuninated display of the same identifying indicia visible during nighttime when said light producing means is electrically energized, each of said light transmitting channels being an unobstructed opening and having an axis disposed substantially perpendicular to the plane of said display member, each said opening being defined by a frustoconical surface being integral with said plate and having a larger diameter opening facing the interior of the housing and a smaller diameter opening facing outwardly of the housing, said housing including a bottom wall having an opening therethrough, and including a light diffusing plate supported by said housing in overlying relation to said opening in said bottom wall so that light emitted from said light producing means is transmitted through said opening in said bottom wall to provide general illumination beneath the device.