Set of 55, each 2.5x3.5" issued in 1962 © Bubbles Inc. (Topps). Card fronts feature choice art, in many cases quite gruesome such as #36 "Destroying A Dog" in which an alien disintegrates a dog w/his ray gun and #50 "Smashing The Enemy" in which a U.S. soldier splits open an alien's head using the butt of his rifle. Card backs are bw/orange featuring story text plus preview image of the following card. Final card in the set #55 features "A Short Synopsis Of The Story" on front while back is a check list. This card reads in part "Planning To Conquer The Earth, Mars Sends Flying Saucers Through Space Carrying Deadly Weapons. Burning Cities, The Martians Destroy Much Of Earth's Population." Checklist card is unused. Moderate margin aging/corner tip wear. Very faint crease on front but does not go through entire card and is mostly only visible in reflected light. VG. The remaining 54 cards have typical margin/corner tip wear/aging but all remain clean and are free of creases. About 10 cards are Exc./NM with the rest in overall VG/Exc. to Exc. condition. One of the all-time classic gum card sets. All cards shown online.