1956 “The Conquest of Space” Complete Set of 50 by Bean-O Bubble Gum. Lot 691. 1956 “The Conquest of Space” Complete Set of 50 by Bean-O Bubble Gum. These colorful cards measure 1 7/16” x 2 11/16” and average nm-m. Winning Bid $125. Back to List Winning Bid $125 Back to List