 In the mid-1950s bubble-gum cards were introduced and grew in popularity throughout the 1960s and 1970s.Nowadays, cards are produced along similar lines to the trading cards of Major League Baseball in America.The first Everton player to appear on a bubble-gum card was Dave Hickson in 1956, and the most popular players on these cards were Alan Ball, Roy Vernon, Alex Young, Ray Wilson and Gordon West.