One-of-a-kind piece was the only one used by Ryan that marvelous California day. Obtained directly from a dear friend of umpire John Shulock, it comes with Shulock's personal letter of authenticity in original envelope mailed (postmarked 1991). The bag has been protected in plastic since it was obtained and is beautifully preserved. Ryan has written in marker right on the bag (looks great): Nolan Ryan 6/11/90.