The original model (seen below) was released by Aurora in 1968 and has a long history that you can read here. The Invaders is an influential sci-fi TV show about an alien invasion and one man’s attempt to stop it (think Invasion of the Body Snatchers meets The Fugitive).
The original Aurora model—apparently based on the notorious George Adamski photo taken in 1952—makes an appearance on the box of UFO: Game of Close Encounters.
2 Warps to Neptune 