Clarion, Iowa August 34, 1938 Dr. Forest Allen Kansas University Hutchinson, Kansas Dear Coach: I have been trying to find some method by which I can teach my boys football and basketball plays other than the use of chalk and blackboard instruction. While in Des Moines the other day I was talking with Buck Powers, formerly with Spalding, and he suggested that I write to you for particulars. He is under the impression that you have been using sone device whereby you move images to certain positions on the football fisid or basketball court. If you have such a device will you please give me a brief discription of how it works, the price of the commodity, and where it can be purchased. I am anxious to receive this information as. soon as possible because my football season opens next week. Thanking you very much for the favor, Sincerely yours Once Gah