1967. Unpaginated. Set of 4 white pictorial paperbacks in a Black pictorial slipcase. Pages are clean and bright, and appear almost good as new. With minimal tanning throughout. Binding has remained firm. Paper cover is lightly rub worn and thumbed with light shelf wear to edges and corners. Light creases to corners and spine. Slipcase is scuffed in places with minor shelf wear to edges and corners.