Cincinnati, OH: 1981. unbound. 3.5 x 6.25-inch First Day Cover commemorating the 3,000th strikeout of Tom Seaver's career. Signed in full by the Hall-of-Fame pitcher and postmarked in Cincinnati, Ohio, on April 18, 1981 -- the day he achieved the milestone by striking out Keith Hernandez. The envelope features a color silk cache of Seaver, as a member of the Reds, beginning his wind-up. Set in a white matte with a weathered white wooden frame measuring 8.5 x 11.25 inches. Fine condition.