Babe Ruth Autographed Baseball Graded 6 PSA/DNA #T01405 . $22.50. This is an Official League Baseball that has been hand signed by Babe Ruth. The ball has been professionally graded by PSA/DNA, with the Ruth signature a 6, the baseball a 6 with the overall grade a 6. The autograph has been certified authentic by PSA/DNA and comes with their sticker and matching full page certificate of authenticity.