Wrap-around cover.
Story page 33 (book page 239) is black and white. Based on page count, it was probably printed on the inside back cover.
Story page 33 (book page 275) is black and white. Based on page count, it was probably printed on the inside back cover.
Story page 33 (book page 311) is black and white. Based on page count, it was probably printed on the inside back cover.