Lot of 4 secret orders that were obtained by completeing test forms at bottom of sheet and removing them, a new secret order being issued upon reception. 3 of these test forms were completed and sent in. Secret order #3 has cut test form but is included. Secret order #1 measures 8.5x10" and notes upon passing code deciphering test, recipient would become "Interplanetary Scout In The Rocket Rangers." Secret order #2 measures 8.5x11" and notes upon completion of solar system test recipient will become "Chief Explorer In The Rocket Rangers." Secret order #3 measures 8.5x10-1/8" with additional 3.5x8.5" test included. Test has been filled out. Secret order notes that upon passing of 25th century weapon test, recipient would become a Spaceship Commander in the Rocket Rangers. Secret order #4 measures 8.5x9-7/8" and notes that upon passing test of understanding of 25th century inventions, recipient would become a "Rocket Ranger Ace." All secret orders were issued by newspapers as premiums in the 1940s. Special orders 1 and 2 describe Mars Fighting Globes and shows Secret Code System. Each secret order has been folded as mailed and has light wear plus aging. Fine/VF overall.