TLS, one page, 8.5 x 11, University of Cincinnati letterhead, April 2, 1973. Letter to Ken Browne, in full: "Thank you for the note and the cartoon map of Arizona, in which my boys have been very interested. Thanks for your renewed invitation to visit Arizona. I hope that our schedule will permit us to get out that way sometime soon and enjoy the sun." In fine condition, with staple holes to the upper left corner. Accompanied by the original mailing envelope, as well as various clippings and covers relating to Armstrong and the Apollo 11 mission.