SPACE PLANE PROTOTYPE MODEL.
Model of Identical Reusable Integrated Transporters, made by the NASA-Marshall Space Flight Center's Graphic Engineering and Models Division, 11 inches tall, the base 7½ inches square. Three identically-shaped planes fit removably back-to-back around a central pyramid mount. One of the planes is silver while the other two are metallic dark grey. Each has a removable payload bay section along the back of the fuselage, and three thruster nozzles. A conical 'hat' holds them together at the noses. Caption label to base, noting "1:200 scale." The whole fitting into original 27 x 14 x 10 inch wood carrying case painted blue and with identification decals.
Likely dating from the early 1970s and relating to NASA's search for a semi-reusable shuttle.