Far out... literally! This official National League (White) baseball was signed in 8/10 blue ballpoint pen by six of the "Mercury 7" astronauts selected by NASA in 1959 to be the first Americans in space: John Glenn, Alan Sheppard, Wally Schirra, Gordon Cooper, Deke Slayton and Scott Carpenter. The ball is NRMT and comes with a JSA LOA.