1939 riviera boxed set of thoroughbred playing cards

I am actually looking for information on these playing cards - value and rarity. I bought them about 12 years ago from a tag sale because I have thoroughbreds. the box is in excellent condition as well as the cards, I don't think they've ever been used (I have not used them - too nice) They have all the cards including the joker. Any information will be appreciated. Thank you!