Jupiter & Four Moon NASA Display London Planetarium 1970s Astronomy Postcard

np36  An incredible London Planetarium souvenir postcard from approximately 40+ years ago showing Jupiter and Its Four Moons from a NASA display inside the museum from the era - it is unused and the official souvenir given to visitors that attended from the 1970s and bar light surface marks just mild (but to be allowed) is unused in outstanding condition (ex minus) - a scarce postcard as was only published for the Planetarium visitors during that year that viewed this NASA display and would appear late 1970s with London Planetarium logo on reverse too