Rayo Card Co. Pyramid Solitaire Card Game c. 1907The design of these Rayo Card Co. Pyramid Solitaire cards is so good, and so contemporary, I almost can't believe they exist and date to 1907. But indeed they do, and the instructions, though taped together, are still here with them, with a note that players should keep track of winning combinations and mail them by May 1, 1913 to the Rayo Card Co. c o Columbia Trust Company at 135 Broadway, NYC! 45 of the original 46 cards are here (the Yellow