Trio of 1951 Bowman Johnny Klippstein cards, comprising a unique and interesting collection.  Collection includes the following: 1) 1951 Bowman: Graded VG-EX 4 by PSA, off-center to the left, but sharp, with a clean image.  2) 1951 Bowman (Signed): Clean, midgrade example, signed diagonally in blue ink, the signature authenticated by PSA/DNA and graded NM 7; 3) 1951 Bowman Print Error:  Klippstein's card has been overprinted by the back of Max Lanier's card, apparently missing a red color pass.  The back is blank.  Authenticated and encapsulated by SGC.  Three cards total.