Kit #H-538. 1/40 scale. Hard litho box Revell "S" kit, circa 1955 - 59. The vibrant box art produced from this period are often considered the classic high point of Revell box art. Model kit includes FIVE (5) crew figures. Kits from this period are called "S" kits because of the advertising on the box sides for Revell's brand of styrene ("S") cement.