VERY RARE CARDBOARD TIP CARDS FROM THE 1920'S-30'S, THESE WERE HANDED OUT AT RACE TRACKS THROUGHOUT THE US TO INFLUENCE THE BETTOR TO BET ON THAT PARTICULAR HORSE, THESE RARE CARDS FEATURE (6) 1932 KENTUCKY DERBY WINNER BURGOO KING AND (1) 1927 KENTUCKY DERBY WINNER WHISKERY, THESE CARDS WERE DISTRIBUTED AT SUFFOLK DOWNS IN EAST BOSTON, MA., AMAZINGLY HARD TO FIND THESE CARDS, GREAT PRICE