Chex pack a wallop and they're wallopin' good! Such was the slogan used by "The Checkerboard Cereal " Rice Chex and Wheat Chex as marketed in the 1950s during their sponsorship of the popular radio and television series "Space Patrol." As an additional cross-promotion trading cards were developed packaged inside boxes of Chex Cereals each a part of a 14-card set. A very attractive and interesting group of cards harkening back to the days when inquisitive American children were awed by the mysteries of outer space and the fantasies of space exploration were just beginning to become reality. The entire collection has been graded by PSA. Grades are as follows: PSA NM 7 Q (1 card): Rocket Carrier Ship; PSA EX 5 (6 cards): Danger - Meteor Shower; Experimental Rocket; Lunar Gyro Jet; Rocket Over Canali; Space Station; Terra City; PSA VG-EX 4 (2 cards): Desert of Mars; Saucer Attack; PSA GOOD 2 (4 cards): Clearing The Space Lanes; Neptune; Secret Code Master; Surface of Mercury; PSA GOOD 2 Q (1 card): Emergency In Space. 14 cards total.