This is a nice set of 2 decks of cards, one with the “Twelve Metre Yachts” and the other set with “International Class”. They have been gentle used and the case is somewhat soiled. They are made by Congress Playing cards with a cel-u-tone finish. I believe that the set of cards were given out by the Bonewitz Chemicals, Inc in Burlington, Iowa. It is stamped with this on the back of the case. Nice piece of history and great for any card collection.