10.75x12.75x3.75" deep box has illustrations of "Cosmic Vision Helmet" and spacecraft holding Tom Corbett Space Cadet cast. Practi-Cole Products, Inc. c. 1950s. Box shows scattered wear w/some creasing to front panel and box is evenly aged. Box remains free of any splits and Fine overall. Helmet itself measures 11.5x10" and is made from a thin sheet of plastic and vacuformed accent pieces indicating audio receptors and a vacuform top w/Space Cadet symbol and "Space Helmet" text pressed into plastic. Scattered wear and aging to reflective surface of helmet. Fine/VF. Comes w/envelope w/assembly instructions/graphics and repeated instruction sheet. Instructions are NM. Rare.