When American youngsters were spotting Topps NFL football bubble gum cards for the first time, kids in Canada were seeing them in their cereal boxes...assuming of course, they didn't mind eating a non-sugary cereal for breakfast. The 1956 Shredded Wheat set offered a single card of a Canadian Football League player per box. Today, the cards are among the rarest … [Read more...] about Called for Clipping: 1956 Shredded Wheat Football Set Offered Prizes for a Slice of the Card