Alien ship control knob from The Invaders. (ABC-TV, 1967-68) The piece is
constructed of aluminum and acrylic, and was used throughout the series
most notably on the alien spaceship control panel in the episode
"The Saucer", which co-starred Dabney Coleman. Measures 4 1/2 in. diameter.
From the collection of Invaders special effects master Thol Simonson.