Nuclear powered probe, 1963

An advertisement from 1963 illustrating a quite-possibly artistic license nuclear powered space probe heading towards Jupiter. The probe was to use the SNAP-50/SPUR  powerplant (300 to 1200 kilowatts of electricity) to power a circular bank of ion engines. The realistic nature of the design should be questioned due to the lack of any apparent communication system… no great big radio dish, in other words.