Hockey cards from the 1930s featured landmark prewar sets: 1933 Ice Kings, 1933 World Wide Gum, and the 1933 O-Pee-Chee issue, with additional notable goalie rookie cards appearing in the 1936 and 1939 O-Pee-Chee sets. Produced during the Great Depression, the O-Pee-Chee sets featured goalie rookies with clean Art Deco design, richly coloured backgrounds, and hand-tinted portraits—perhaps offering early goalie collectors a welcome splash of colour during difficult times. Rookie cards of legends like Lorne Chabot, Turk Broda, and Frank Brimsek came in the 30s