This is the 1973 Kellogg's Baseball Card Set contains 54 cards, measuring 2 ¼” by 3 ½”, making the 1973 Kellogg's cards slightly bigger than the 3D cards produced in the preceding year.The only non-3D set produced by the Kellogg Company, the 1973 Kellogg's cards were produced through Visual Panographics, unlike the 3D cards produced by Xograph in previous years.