|Willie Mays Box Topper? Blank back cut card|
|1988 O-PEE-CHEE BOX BOTTOM #G john kruk padres BLANK BACK|
|1988 O-PEE-CHEE BOX BOTTOM #L darryl strawberry mets BLANK BACK|
|ANDREW MCCUTCHEN 2018 DONRUSS BASEBALL #159 BLANK BACK SP BOX HIT
Blank Back: A card with literally nothing on the printed on its back. Most blank-backs are manufacturing defects, and as such, carry very little, if any, value.