1789 experimental aerospace flying craft. spruce goose inspired, Caspian Sea Monster Ekranoplan styling old found 1789 footage, experimental spacecraft, example document evidence of old world space travel in metal-work technology prototype deep-space space craft, vintage photograph, document papers. observable Earth. ion engine propulsion system. heavy think exhaust. black and white photograph that has been edited and manually colorized after printing do not depict any kind of tractor or industrial ground vehicle with tires.