This is the outer glossy cardboard cover of a set of six unused, different, genuinely spectacular 3D-effect cards, made of that ridged plastic, and that change their picture as you move them around in your hand.  The scans can’t show this, but as an example, item 20307347B (our next entry) is one of the cards.  The scan shows hands holding grain in a wind farm, but from other perspectives you can see city skylines and a bullet train.  Other cards have cultural, labour, and military themes.  And on top of all of that, each card comes stamped with a mint Y1.20 stamp essentially making these Maximum Cards as well.   Grade: 1