3-1/8x5.5” paper folder for Post Corn Toasties premium glow-in-the-dark ring from 1946. Has great illustration on front of Buck wearing ring with larger inset illustration of the ring itself. Contains detailed information about the ring, its uses and “Atomic Secrets.” Additional illustration on inside depicts ring on a hand with Saturn in the background. Two horizontal folds and light crease on lower left corner. Clean. About 20 times scarcer than the ring.