This is from 1954 and near the end of the era of brass based premium rings. The base design includes rocket ship, star and planet designs along with a moon face. On the top is a large plastic gun with end cap which glows in the dark. This end cap pulls off and there is viewing lens at the rear end of the gun. The interior view is simply black specks on a gray background somehow meant to represent hydrogen atoms. Great design. Mint. Comes with photocopy showing this and three other program premiums.