Here is a rare complete set of 12 cards dating back to 1950 and presented in chocolate bars and products from Nestle , Peter, Cailler , Kohler chocolates. The cards are paper thin and measure approx 1.5 ins x 2.25 ins .They are in good condition given their age and delicacy and are beautifully illustrated and detailed with some rear text in French . They are extremely rare to find in complete sets and in this condition. This set is Set 15 from the Marvels of the World series .