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 checklist. 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." This card is unused and Exc. Eight cards have been graded by PSA. These are NM-Mint 8 #32, NM 7 #20, EX-Mint 6 #5 and EX 5 #'s 1,22,26,50,54. All other cards, in our opinion, match their EX-Mint if not even NM grade. A superb high grade set for one of the all-time classic gum card issues. All cards shown online.