2-3/8x5.5x7.75" box contains 5.5x7.5" gun/flashlight. Made by Marx Toys in 1950s. This gun also came in a red version, this is the blue version. Comes w/envelope containing "Auxiliary Red And Green Signal Lenses" which were two circular sheets of colored plastic that was slipped in front of light to produce a colored "ray." Also included is 1.5x2.25" instruction sheet. Box features image of atomic pistol w/beam of light emitting from barrel. In beam of light text reads "Sensational Super 300 Ft Beam." Lt. handling wear but Exc. Gun lights and produces a pinging sound when trigger is pulled. N. Mint. Rarely found complete and working.